There are a few Redemption games that are / were fun. .. such as SkeeBall, Whach-A-Mole, Spider Stompin, and some ball toss games.
Most all others are skill-less Stop the Spinning light kind of games... and they are Rigged. Even if the kid gets it dead on... if the payout percentage is not jiving... it will bump that light one more notch over so that the kid will lose.
Crane games are similar. There are adjustments for the pickup strength... as well as some other tricks. Packing toys in tightly.. so that it takes like $50 to get a single .99 stuffed animal.
Then there are the "Coin Pushers". They are very deceptive... and there really is not much skill in them either. They can hold a mega ton of stacked coins before coming close to paying out.
And finally, as far as memory serves.. there are the coil roll, or coin flip games. Same principles... very limited skill set.
The problem is that as time went on.. these games became less and less about being games of SKILL.. and more and more about being like slot machines (with tickets as the incentive payout). People of all ages like physical games of skill. But rigged gambling games? Most people will skip over them. Even the kids pass them by, especially when the experience is boring, anti-clamatic, and left walking away feeling cheated.
The over-inflated ticker counter prices were insane. Nobody in their right minds would collect enough tickets to get those cheap trinkets. The ticket counter is a NIGHTMARE for an OP / Arcade manager / Arcade Employee.
The kids wont have enough for what they want.. so will scream and cry. Parents will do battle with them. Then after the ear splitting screams subside... they will take about 20 min to pick out two trinkets. You cant walk away from the counter until they are sure... so you are stuck in uncomfortable limbo land. Meanwhile... people are carrying drinks into the place, kicking games, kids trying to hang from joysticks and or rip off steering wheels... and at least 2 scammers are demanding that they lost their money in a machine... and want something done about it immediately. Ohh, almost forgot about the kids, teen, adults.. trying to shake the coin and candy pushers. >_<
*Alarm* blasts off... And meanwhile, you are hoping that nobody has tried to steal your tools from the game you have cracked into pieces...
Then you go home... to be called back in because one of your employees ticked off a customer... and said customer kicked the glass redemption showcase unit. Or all the bill changers seem to have teamed up in the perfect storm of full and complete failure... Wheeeee
(sorry... 3 yrs of a Namco's Time Out Arcade gets to you!

)
It didnt get much better with modern arcade games. Fighters took over all the Original and unique game play styles. Driving games got less and less skill based.. and more and more like a kiddie ride without the fun motion. (IE: The cars wont wreck when you hit something at speed... nor will some games even allow you to drive past the curb... using a magical force field to keep you in check. Crash at 200 mph? No problem.. you just bounce off the wall / inviso-fence, and keep on tooting.. )
The games got so skill deprived (besides the fighter -vs- fighter), that it became pointless to bother playing. In many ways, it was worse that a ticket spitter.. because even though you just got cheating of any sense of a good time..... you cant even get a tiny piece of candy afterwards. heh
The gun games were plentiful ... but too plentiful. And not all gun games were all that great either.
There was a period where a lot of Giant sized projection screen games were put into play. Like Alpine Racer. Again.. most all of these were so simple and boring... that nobody played them more than once. They were mega expensive.. and got like 2$ a week in revenue. (Taking up like 4 to 6 games worth of space) Rare exceptions were games like Top Skater.
Anyway.. as Ive said time and time again... If you take the Skill out of gaming.. you lose most of the players... and you lose repeat business.
The only places where Arcades still scrape by... is in super population-dense high-rise areas, such as in Japan. Of course, your going to pay through the nose for the land/space to have a business there.
The Arcades Could make a comeback if creativity were allowed to flourish, and gameplay was again put on Top billing, rather than mere graphical looks (and no substance). Arcades should also have more unique games of skill... Like those great "Big Ball Bowlers", "Shuffle Puck" games, and more of the same nature.
If it were up to me... all ticket games that have "Payout" rip-off systems, would be set ablaze, and laws established to prevent their return.