Your wife must be a saint. First she lets you build your own house and take 5 years. FYI, I didn't have any grey hair when you started, but your scaffolding has aged me. Next, she'd take a coke bomb hand me down so you could get a new one. That's bizarre.
Last year my wife's Volvo hit 75k miles and my Escalade hit 100k. I told her I was thinking of getting something new and she comes home with a gl550. Now, I can't afford a new car for myself so I had mine detailed and some trim pieces fixed to feel better about it.