Would've moved to United to play under the worlds best ever coach sir Alex and when he retires he's not gonna go up to his kids and say " look I'm a premier league legend " he would wanna show his achievements winning the BPL. Also he is a club legend coz he has over 100'goas for Arsenal and he's their 8th highest goal scorer in their history. And he earns more money which he can feed his family.
First, I wanna point out, that I'm not asking this because I'm extremely mad of RvP's transfer seasons ago, just saw these comments in Daily Mail (where comment section is better than the actual articles).
"This man could have been a legend if it weren't for that little boy
inside. So many have a Premier League trophy to their name but precious
few become legends. United fans are already forgetting him and he's lost
more love from Arsenal fans than he will ever gain elsewhere"
"He got his PL medal, but he'll be a forgotten man in a few years .. Just
look at Anderson, Cleverly... etc. RvP could've been a legend , a
premier league one club man."
So basically the point is, would you have those 250k a week, 1 PL trophy and forgotten name in future. Or 120k a week, a legend in the club and FA Cup & (possible PL trophy in future? (I know, possible))
What would you've done in RvP's shoes? Try to be as objective as possible, think about yourself and forget that you're a fan of Arsenal or Man Utd, it's not about that.