Ignoring the lack of updates if the game is buggy, games back then were also more focused on quality and make gamers replay the game with unlockable features based on skills, not money. I can't count the number of times I played Metal Gear Solid games over and over to unlock new features playing the hardest difficulty and with handicap features, and also to find Easter eggs. Speaking of Easter eggs, you'd lose a number of hours exploring every nook and cranny finding them!
Actually there is a company called limited run games I think that goes all out and prints physical copies of some indie games with instructions and bonus stuff. It's pretty awesome but takes a while to get it.
Ok that is pretty awesome