What percentage of your yearly income is that? Will that be the last big expense for a long while? Or will you go out and buy a boat next year? Is there plenty of savings?

I wouldn't get something that fancy until I was at least Cat 2......but if you have plenty of money go for it.
You're not supposed to keep "score" in a marriage but it seems like you have plenty of "pull" over the wife Put some money aside for the counseling later....