I️ find reading these threads amusing and in reality an exercise in rationalization. In my view the bottom line is if you want a plane, buy it. Like owing an RV, a McMansion, a luxury car or boat, many strain mightily to justify the costs associated with each purchase creating straw man arguments knocking down each of them, one by one. Or in other words classic rationalization of making a “want”into a “need.”.
Aviation is the only industry where I've seen people try to rationalize purchases and account for every dime they spent. I have yet to run into a boat owner or classic car restorer/hot rodder that ever really thinks about the cost. They just buy what they want. Ironically, many boat and car guys don't seem to be nearly as well off as the average airplane guy, yet they manage to figure out how to make their finances work.