I can't copunt the number of times I've lost sleep because i was worried the ROM cops would show up at my doorstep. 
Filesharers used to feel the same way!!
It is just a matter of time folks. As we children of the eighties and nineties grow up and begin to make real money, the ROM owners will wake up and realize there is something there to be sold.
Maybe, maybe not. It is different than things like music and movies. Music and movies age very well, and a good example of either will be sold for decades.
Not so with software. Software has very short lifespans. Old examples of non-gaming software have almost no value at all. You couldn't sell most MSDOS software for a penny these days. The old stuff has almost no use at all to the manufacturer, they certainly can't hope to sell it, and things have advanced so far that it probably doesn't even have much reusable code in it.
Gaming software is the only exception, but the situation isn't much different. There is pretty much no market for 95 percent of old gaming software titles ever made. Only the absolute cream of the crop has any market, and even that market is both small and cheap.
For example, for years now there have been various classics collections made for various computer and video game systems. Most contained about a half dozen different games, and retailed for around $20. Making those old games worth about $3.
So yes, games like Pac-Man, Defender, Final Fantasy (Nes), Sonic (Genesis), and other best of the best games are worth a big whopping $3 to the general public.
Now, try selling Graplop, Pooyan, The Hand, Crime City, Breakthru, and Yosaku in a "Classics Collection" priced at $20, and watch carefully as no one buys. Try to sell the same collection as a $3 piece of shovelware and you might succeed, but probably not.
So what am I saying? I guess I am saying that there is almost no market for most older software, and little REAL reason for the people who own the rights to waste any time or money chasing down "offenders". Sure Konami owns the rights to Pooyan, but would it make ANY sense for them to spend a dime on it, it probably didn't make them much money in 1982, and certainly isn't going to make them any money now.