Where are/do you want to be based? You have good reasons to make the jump. You might be older and with different circumstances than the op, but you've still got nearly 30 years left. The grass isn't always greener, but there are huge differences between freight and pax flying that a lot of us on this side forget. Brown/purple are great. Sometimes I still regret not going with purple when I was getting off active duty about a decade ago, but in middle age, one thing I know about myself is that I'm a candyass, and 2am-5am hub turns every day and commuting to/living in MEM isn't for me. If this is a career that is going to span decades for you, and if you know that the type of flying you're doing isn't for you, come on over. Just try to do it with your eyes open and with realistic expectations.