Mmm yeah, I'd love to get a few of these but $21 feels a little much given the age. It's quite possible I'm just cheap.
Alot of people here are, it seems. I get being frugal and all, but complaining about discounts on already cheap games(except some of the obviously overpriced ones stuck at the 10 dollar pricepoint) is like complaing about not getting 2 free hotdogs instead of 1 free when buying them at a restaurant for 2 bucks during a BOGO event.
Well, part of what I like about PC gaming is that the prices actually go down.
Even before GOG, I was always 2+ years behind on my gaming, because it meant I could buy games for less than 20$ (I always thought paying 50$+ for a single game was insane if you aren't wealthy even if the game is brand new, but at the same time I still want the game creators to get paid and hence...)
And that was for games with good to glowing reviews.
I never minded playing older games as frankly, I don't understand what the fuss is about with the graphics most of the time, I just find they don't add THAT much to the gameplay... a good game with dated graphic is still a good game and a lousy game with great graphic will still be lousy.
However, we all have our thresholds.
Mine is for graphics before the SNES era (and no, its not because I started playing games when the SNES was around, I'm old enough to have played hundreds of hours on the NES as a kid).
So, bottom-line is: I'm already used to paying 10$-20$ for games with somewhat modern graphics and that have good reviews (granted, reviews are not everything, but there is a correlation between the review scores and my enjoyment of the game...).
When you throw in games with really ancient graphics (past the threshold where I can say I don't really care that much about the graphics) or mixed reviews (the nice thing about those older games is that you can look at the review for the review sites and also the average review from tens or even hundreds user), then my sensibilities dictate pay only a small fraction of what I'm used to or pass.
Also, in this case, you have the fact that you have many games in the same franchise which plays against it (If the franchise has 2 games, its not so bad, but when it has 8, you might come to the conclusion that you won't play all 8 of them anyways... especially when some games in the franchise are probably very similar to others, but inferior in most ways).
Anyways, that's my take on the games for this deal.