I love Risk and so do my friends. We don't get the chance to play as often as we'd like so we play about once a month or so. We generally play using the classic map and we mix in some of the variants on the back of the rule book (commanders, etc.) and other rules (once, we nuked Australia from the start so no one could take it!). We just started playing some of the other new games, the Star Wars Risk games and 2210 AD and we love them and are now playing those more often than not.
I play Risk II on my computer and I play that 2-3 times a week and I used to go online a lot, but no so much anymore.