I was in Warsaw, for the very first time in my life, in 2003. To be honest, I wasn't overly impressed at first. It felt too.. americanized, almost lacking it Polishness (that's a new word

). However... Lazienki, the Old Town, Wilanow.. I can't find words that would come even remotely close to how I felt!
But I know where AntiMono is coming from. I think, once you live in a place, no matter how spectacular, how breathtaking, how attractive.. you live it each day and it just becomes exactly that - an every day thing, and every day view..
Perhaps you should take a weekend and re-discover Warsaw?