i've also heard from other people, that tbwktm is a good album, but that it misses a mega-hit like GK. and while there are several songs on tbwktm that i like more than GK, i agree that WAG can't keep up with it. that song even had to grow on many of us before we liked it - and most people won't bother listening to it so often. i like WAG because of the message, because of the boxershorts video and because at the live shows it's fab when everyone screams "we are golden!". but most non-fans - especially in non-english-speaking-countries - won't understand the message, or listen closely enough to notice it. maybe not everyone will love watching him dance around in his underwear. and at live shows, mika indeed convinces people, but they first have to buy tickets for the shows!
and i think WAG isn't a good choice for tv-performances... you don't realize it when you're in the audience at a show, but when you watch it on tv, it sounds strangely out of tune during "running around again" (i noticed again at that belgian tv show) - obviously it's supposed to sound like that, but it does sound strange imo.
so it's not a surprise to me that WAG didn't do as well as GK - mika said himself in one of the interviews, that you can't plan to write a song like GK, it just happens. still i like tbwktm more than licm. but maybe many people bought licm just because they liked that one song, who knows. or because more people in europe got to see him live back then (as i said and as we all know, his live shows are very convincing...). so all we can do is hope that sales go up again during the tour, and that one of the future singles from the album will get people hooked like GK did. if it was up to me to decide, i'd try with "touches you" - but well, opinions differ about this song as well, so no idea really... i'm glad i'm not the one who has to decide!