I'm not quite as old (69) but I have had similar thoughts. I'm running a pair of Thiel CS6 speakers with Krell amplification. I have been to 3 audio shows and I have thus far concluded that to significantly better my system I'm going to have to spend in the neighborhood of six figures. A few speakers have stood out (MBL 101E, Von Schweikert Ultra 11, Sonus Faber Aida plus a few others) but for the most part my Thiels sound about as good as anything I've heard. I've only heard the Revel Ultima Studios once but I would put them in the same league.
My point is that I don't think you are going to do significantly better than your Revels without spending big bucks. The stress of hunting down a new pair of speakers that you realistically can't demo in your home and taking the chance that they are not a significant improvement (or maybe they would be worse) is not worth it. If you had $10 million in Invidia stock then what the heck? Live a little. But with the situation you have described this sounds like an endeavor that will have a lot of consternation and could easily end badly.