My wife and I bought Twilight Imperium, but we chose to buy the 3rd edition, as we didn't want a watered down version. However, it has proven harder than expected to actually finish a game. We've also discovered that the optional cards from the expansion make for a much better game experience, so we've made our own versions to play with, as it's not that easy to find the expansion for the 3rd edition nowadays.
Well, after it falling on hard times, Dungeons and Dragons is on the road to recovery. I've recently been invited into a weekly group (after not being able to find one for 25-ish years) and we're all enjoying it.