As above, I tend to do an awful lot of flying in a couple of foreign trips a year (mainly for cost reasons, and I hold a Canadian license). It DOES take a couple of days to get back into the swing of things after a break of many months, but then if you're doing 3-4 hours a day it all comes back pretty quickly!
Probably manage 60-80 hours a year, and try to add a rating for every trip. Pretty soon I'm going to start getting to the expensive ones though
If we were all richer it would be a lot easier, eh?