Well, that's a little (excuse me, lot) selfish!

I would call him on that. If he will only go to OKW and won't share your favorite resort with you once in a while, tell him he can go to OKW by HIMself. I'm sure you enjoy you solo trips without him, I am certainly not suggesting abandoning them, but I would hope he would compromise sometimes. Or maybe you don't want to share YOUR favorite resort with HIM?!?