why, exactly?
I just see IaMP vs SWR debates always leaning quite clearly to one side over here, when it gets brought up - if it comes down to the choice, it seems like the western fandom prefer IaMP (Or at least the people interested in these debates clearly do). But, when put into comparison with the whole of the fandom, it's suddenly the opposite. And I doubt that such a huge gap can be explained away purely by accessibility, either - it's a pretty massive gap, afterall.
I've heard that part of the reason nobody takes SWR/Soku over here seriously is that, well... nobody here takes SWR/Soku seriously, unlike IaMP, but this is different in Japan. That might sound really silly, but in a way it's kind of true - that people are so quick to accept a singular answer like "Oh, yeah, it's just more accessible" as a full explanation for such a huge difference is evidence of it.
Either way, like I said: people need to give a serious shot to whichever one they don't like as much (Or both, if they've been ignoring 'em). Clearly there's reasons for people to still prefer IaMP... and clearly there's reasons people love Soku.
EDIT: While they're at it they should go try out the PC-98 games too D: