Xbox360 without Xbox Live = BAD?!?

Where I live, everyone mods their xbox360 and there are little to no people playing live over here, maybe because the internet speed is really low.. Well, I've been playing on xbox360 without Xbox live for almost 2 years now and I can say that I really enjoyed it. Maybe I'm more of a single player gamer. In my opinion, the only games that REALLY are little to nothing without their multiplayer mode are L4D1 and 2 (bots are a bit annoying...) and CoD : MW2 (short, crappy campaign compared to the amazing campaign CoD 4 had!). But now I've noticed that review website rate the game much lower if it doesn't contain a multiplayer mode! What happened to the times that a game was made for ultimate single player experience rather than general based multiplayer experience!? There are lots of games that have brilliant campaigns like Bioshock 1 and 2, Red Faction, Bayonetta, CoD4, Darksiders, Dante's Inferno, RE5 and much more coming soon like Metro 2033 and Alan Wake! what do you guys think? Some people say that they wouldn't even consider getting a 360 if they weren't considering getting xbox live with it! What do you guys think?