Go check out, for instance, Amazon. I think there's some kind of sale going started by Paramount or whoever it is that distributes these boxed sets! But only seasons 1, 2, and 3 are at reduced prices. Seasons 4, 5, 6, and 7 are still at around $100 USD.
I picked up seasons 2 and 3 myself. Even though I think there's maybe one (two maximum) episodes I like from season 1, I cant' bring myself to spend money on it. Even season 2... I had to think about it, but some of those great Worf-Klingon Empire arc root stories are there.
If they ever cut the prices on the rest, I'll look for season 5, as I already have season 4 (paid full price for it when it was new! Duh... well, I DID get to enjoy it for all this time, though).
I've got some viewing to do: TNG seasons 2, 3, 4; all seasons of TOS; season 4 of Enterprise, and that ONE season of Space: Above and Beyond. I think this lineup beats whatever's on the air right now... though Teen Titans might come close (but I can't tell my kids that!).