I'm in my early 30s and have to agree that I'm at the top of my game right now. Body is still young enough that I can do whatever physical activities I want, and I have the means to actually do those things now.
This.
I'm 31 now and in the best physical shape of my life. I do have to focus more on diet and exercise to be there, but I have never looked or felt better. Good stable job, plenty of emergency money in bank and I make enough to vacation a couple times a year.
It is a prime age for dating too, as those that are 21-45 are all in a reasonable range. Across that spectrum they have many different things to offer. I have more experience than guys younger than me, so that makes it easier to pick up younger girls. I don't have the baggage and stress of most guys older than me, so I can easily pick up older women. Win win.