What you want to do is get it, go through the SP storyline and DLCs, then grab some mods. (This is if you're playing on PC, which I presume.) If you spend a little time finding mods, you could be spending a LOT of time playing. There is some stellar work out there. I've ended up playing (A heavily modded version of) Fallout 3 for 150 hours in total over 3 characters ever since I got it in 08. It is, in my modest opinion, one of the must haves of recent years, as long as you get all the extra goodies like mods or Point lookout. On the DLC, Operation anchorage sucked but the extra stuff was nice, The Pitt was ok, definitely better than Anchorage, Zeta was almost as bad as anchorage. Truthfully the only good DLC was point lookout.(But If you want the DLC, I recommend you just buy the GOTY edition, even buying just ONE of the DLCs is a hassle with Games for Windows Live and all of that "Microsoft points" bullspit.)