thetwilightzone.net has the entire 40+ volumes of The Twilight Zone on DVD for about $500. Full retail is over $700...
All of a sudden, that seems within reach and a very bad idea all at the same time. On the one hand, if I had $500 burning a hole in my pocket, it'd probably go to YAS. On the other hand, spending $700 in increments of $10-$20 (over the course of years) doesn't seem like that much money (until the you actually total it up).