My buying games has slowed significantly, but honestly mostly cuz I have just about everything I set out to get.
Most games I buy nowadays are games I've played for NA/VGS contests and liked, or otherwise games I've more recently been made aware of in general. The only games I feel I "need" still for my collection are unfortunately sitting in the "couple hundred dollars" range for the majority of them, and I'm being picky about condition, so it takes a bit to find the right seller.