I do this more frequently now that I'm in my mid-late 20s, often without thinking about it. If there's nothing I want, I'm content not buying anything. Just last year, I bought Lost in Shadow in July because it was like $15 and I believe that was the first game I bought since Donkey Kong Country Returns in November 2010. If Lost in Shadow hadn't been on sale, I wouldn't have bought anything between DKCR and the 3DS which I got in August and only because it dropped $80 and I got the ambassador titles.
This year, I've already passed on or plan on passing on a couple games I wanted, namely Twisted Metal and Lollipop Chainsaw (that will drop in price in no time). If Xenoblade wasn't a limited release, I could have waited, same will go for The Last Story. I still like gaming but not nearly as much as I used to. There aren't a lot of games I'm eager to get day one. If not for amazing sales or limited availability, I could have gone without any purchases between Resident Evil Revelations and Wii U or Resident Evil 6, whichever comes first.