The main problem with buying import games is that they can sometimes take a long time to arrive. As for quality of the product I have received, I can't complain.
All of the import Famicom and Super Famicom games I have bought from Japan have been in great condition. The eBay sellers list the items (most of the time) with several quality pictures and usually try to highlight any flaws. The most recent arrival for me was a complete copy of Chrono Trigger for the Super Famicom. Everything looked fantastic. I also only paid $15 with shipping for it!
As an added bonus, I've found that import games have better packaging. The boxes are almost always in better condition because the cartridge is held by a fairly rigid plastic holder inside the box.
One thing though...it's bewildering the variety of shapes and sizes that the manuals and boxes come in. A lot of games deviate from the "standard size" that most of the games use.
Yeah, I've noticed that even 'damaged' boxes are still in really nice condition on some postings.
$15? Sounds like a deal to me!
I kind of wish Nintendo would do something like the NES remix, except they'd feature a bunch of JP games that never got imported. It seems like there's quite a few good ones out there, but it's a matter of discovering them.
There is so much cool stuff in Japanese gaming that just never made it over here. The box art for older NES/SNES games here in America are atrocious, misrepresentations of fantastic Japanese originals. Look at the artwork for old Final Fantasy and Dragon Quest titles to get an idea. You had all kinds of cool items like the Famicom Disk System and the N64 DD drive that never made it out of Japan.
I think a lot of it has to do with how each culture views gaming. In Japan, it's been completely acceptable forever to be into gaming, toys, models, anime, etc. Look at all the fantastic Mech anime like Gundam they produce. They make figures, OVA's, series, music soundtracks, etc.
At least here in the US from what I have seen and experienced (and as we have discussed), gaming is still seen by the "masses" as something for kids. The older generations don't understand nor care to understand why someone would be into playing games, collecting figures, etc. My parents watch a bazillion hours of television that I couldn't give two poo's about and I don't get it, but it's fine because that's what they do. But from their mindset, I'm wasting my time playing games.
Thankfully, the times they are changin'.