It's sort of rude to make an assumption like that. Just because you like color tamas and not the tama-go doesn't automatically mean that everyone who likes it only likes it because they never played a color tama. I just got my first color tama today and yes it is very cool and more advanced than a tama-go but i still like my tama-go. Just because there is a more advanced version doesn't mean the tama-go is no good. As the current newest english tama it is very nice. It features great characters and fun games especially if you get the figures.
Save yourself the frustration. Don't buy a tama-go. I happen to have one, and although some of the backgrounds are fun, you should invest your money elsewhere. Really. I bought myself an iD-L last october and I love it. They are a bit pricey though. But in my opinion it was worth it. Plus, I don't know a word of Japanese and I could still figure it out. Tama-Zone has a pretty good guide for them if you can find it. But definitely, do not get a tama-go. The people who enjoy them obviously haven't ever played with a color tamagotchi.
You're entitled to your opinion of course but try not to make generalizing statements like that as they will probably turn out wrong and might offend some people.