Err.. I look at it this way; Getting enough to eat is more important than a kiss, Second World War was more important than a kiss, making sure there's peace on earth is more important than a kiss. Even getting your goddam education finished and getting a decent job is more important.
See... pretty stupid comparing a kiss to all these other things?
YEs, you are right when you say there are many things more important, but that all depends on WHAT you compare it to.. and when! Sometimes, a kiss can seem like the most important thing for those two (or three?

) people enjoying the kiss. That moment can be the most important thing. One simply can't compare a kiss to ALL other things that are more important... A kiss is a kiss, but can be enjoyed and thought about in sooo many ways.
Besides, the special thing about the kiss isn't (most of the time) just pressing ones lips agains anothers... it's the emotions behind the action... A kiss is like a symbol of something... either love or something else.. (or:just being horny!)
In truth Horizon, I'm on your side about the kissing: I see nothing special about it and don't feel like it's such a big of a deal. But I can still understand and respect those that feel that kissing (and the first kiss) is something great and big.
ANYWAYS: I've always been more interested in watching jrockers kiss eachother than kissing someone myself...

*feels like a freak*
Dream kiss: Miyavi kisses Toshiya. Lucky for me it never happened, I'd be dead!