Mostly play 1500 point 1v1 or 2v2 games with friends. It even works well when there is 3 of us and we play 2v1 with 2 players having 750.
I feel the game is at it's best at this level where you really have to think if you can afford that shiny Havoc. Recon becomes very important and the tension is fantastic - very cat and mouse. You don't know what the other guy has bought, so you have to go and find out. Ambushes are set for recon helos and AAA, arty starts probing, hidden recon gets found and tries to do a runner... it's great.
I've played a couple of 2000 point games, not much difference to the above, but anything above that is one of the OP 'fests'. Just buy pretty much anything you want, charge in and see if your blob beats his. Rinse, repeat. *yawn