Should Roger Federer retire? He was up 2 sets to love against Tsonga in the Wimb. QF today and then lost in 5?

sets. At age 29, and almost 30, he's on the downside of the greatest career ever. I'm a huge Federer fan, and I'll tell you, these last several years have been so tough on me, watching him lose these tough matches. The likelihood of him winning another major is very slim. Why should he even continue on? He's already worth over 100 million. He should retire with some dignity, maybe after the US Open. What do you think?