Hi everyone!
First I have to say, I'm new in the forum but have been visiting this site for quite a long time! I live in Spain and proudly own a beautiful Atari 2600 and LOVE it.
The problem is, games here are not easy to come by and they're overpriced or are in a relly bad shape. I knew that sooner or later I'd start buying games from the internet, but the NTSC vs PAL problem strikes again. 
I know you can play NTSC games in a PAL Atari 2600 without much trouble, but the palette changes. Is that a big issue? I mean, does it really make a big difference? I was going to get Donkey Kong, Vanguard and a couple of games more from ebay, but they're NTSC and I'm no longer sure if I want to spend my money on them and then get disappointed when Donkey Kong appears in blue on the screen... 
Anyway, thanks in advance! 