I turned 64 this year when I bought one. It may very well be my last new vehicle since if maintained and taken care of properly, it should last for many years, maybe the rest of my life with probably little to no issues. So to me it comes primarily down to affordability (apparently the new in-word these days). Can you buy one and still live the life you want comfortably. If you can then perhaps. Now if buying one could put you in undue financial strain on your budget taking funds away from other necessities, then maybe not such a good idea. I expect your Lexus is still doing well and may suite your needs for some time yet if need be. Speaking for myself I look at it as, I like it a lot, It's a good reliable vehicle, I'm not getting any younger, I have far fewer days ahead of me then behind, and as the saying goes you can't take it with you. That's my opinion anyway. If I wasn't making the kind of money I am and financially in good shape, maybe I wouldn't have bought one. It's a matter of wants, needs, budgeting and livability, short term and long term. If you can fairly easily afford one with little impact to long term plans, great it's only money, if not. Then probably shouldn't.