These days I only buy NTSC games for NES and SNES since I bought NTSC consoles for both because of that 60hz goodness. It's just so much better. The problem with that though, is that living in Europe means the only consistent way of getting NTSC games is eBay, especially if you're looking for something specific. And that can be costly these days as we all know...
And now with the Global Shipping Program that most US eBay sellers use it's even worse because the cheapest shipping becomes like $25. Yes, to ship even a friggin' Game Boy cart to Sweden costs around $25, plus eventual import charges if the game is expensive enough. 
As you can imagine, I get a lot of Japanese games instead these days... Still, there are some US sellers that don't use GSP so one can wait for auctions from those. I think a lot of BIN sellers like lukiegames and jj-games sell mostly to international buyers these days because of this. Because yes, they are a couple of dollars more expensive but they have WAY cheaper shipping (lukiegames has $5 shipping for me per game, + $2 for each additional game, for example) so for me that still makes it worth it in a lot of cases. And even if they are a little more expensive than waiting for auctions, they're still much cheaper for me than buying PAL games locally.
Retro game prices in Sweden has gone truly insane.
...sorry that became pretty rant-y. Just had to vent a little lol.
