Now I will admit that I get excited occasionally when there's an incomplete (called a beta) version of a game I like available on the internet. I got excited when 3D Realms released "LameDuke" which was a beta version of Duke Nukem 3D years ago. I also got excited when I first played the early versions of DOOM.
As for Sonic games, we've been fortunate to have a couple. We have early versions of Sonic 2, Sonic CD, Knuckles' Chaotix, Sonic Spinball, and now recently Sonic 3D Blast. From what I was told, there's also talk about another Sonic 2 beta version on eBay.
I have a complaint, but it half-way contradicts itself so bare with me. My complaint is back in 1999, you could buy a beta version of Sonic 2 for $200. Now we're paying $700 to get another early game? I do not intend to offend anyone here, but lets be frank for a moment -- that's dumb! I see people get all excited over this, and those same people bid up the price because they're actually willing to spew money for something that isn't even finished. Forget about "doing it for the community" and finding all these secrets. People research these incomplete versions and find them so interesting as I do a couple of them, but what will it ever give a person out of life? Not a darn thing. Nobody in the real world cares if a person owns an incomplete game or not. You can't put that on a job resume or anything. People are paying $700 instead of $100 or $200 because they are easily sucked in over something that isn't that great to begin with.
Here's something else to think about -- why should you have to pay even one penny for something that isn't finished? Would you pay someone to take your car apart to fix something but not put it back together for you? If you pay for a job that isn't done, you're being ripped off. What's even funnier is people who are willing to spend money on incomplete games are not only being ripped off, but they're doing it to themselves! Are secrets in a video game that is 15 years old all that important? Sure it's fascinating at first, but a year later you will look back and say "oh that's old news". So you basically pay a big load of money to get psyched for a couple months out of your life. Unless you don't plan to live very long, I'd say that's the dumbest thing I've ever heard of.
If Sega really thought the beta versions of those games were all that great and were worth money, they would have put them in stores and sold them. Instead, these games are being illegally sold, and they're being sold at prices that are way above those of the complete versions. I will take a beta anyday if it's free, but I will never pay anyone even one cent to get my hands on one. 8 years ago I would have considered spending my money on a beta version, but I'm mature enough now to realize it's a total waste of time and money.