My goodness. No offense intended. Still, you're wrong. The majority of those 200 games aren't good. Also you don't play them.
Nope you are wrong. We are talking storage size which isn't subjective, but you are making it so.
They aren't good to you. But many people like them. Just to point out how wrong you are my VERY small list of wii games along with some wiiware, emulators, ect takes up 20-30% of my 500 gb drive. The majority of the titles on my wii are first party titles... you know the ones that virtually everybody will want?
So on a 250 gb drive it would be 40-60% full. Since my list is quite conservative I could easily see a person having storage issues on such a puny drive.
Now for me personally, my games collection probably does max out at around 50 games, BUT if you are a casual games fan the wii is a goldmine for games. There are tons! Also keep in mind that if you have children, sometimes kids like crappy games. I thought winter games for the NES was the bomb back in the day, for example.... so much so that I traded excite bike for it. It's astounding how a 8 year olds mind works.

I'm not saying get the biggest drive you can find either... that's silly, but 500gb is a good sweetspot. I got mine for 60 bucks enclosure included. At the time they had 300gb drives for around the same price, maybe slighty cheaper, but want kind of idiot would pay more in terms of MB per dollar?