I retired after 35 years of teaching (which I loved). Being on Tier 1 in NYS my pension is OK (compared to Tier 6 that they have now) especially when combined with Social Security which I waited until age 70 to collect. I never cared to live a lavish lifestyle (not that I could with four kids). I really liked being a father more than anything. When I was a young teacher it was difficult because the pay was so low I had to work every weekend as a waiter (a single Friday and a double double on Sat and Sun). But I made up for it in the summer when I spent time with the family during the week. As time went on and the pay increased I made jewelry and sold it at shows on some weekends and ditched the waiter jobs. Now that they are older they still call me with their problems, but I love it.
My renewed interest in trains came only recently because of a grandson (my daughter's son) who became obsessed with trains at age 1. So I spent (spend) more than I would have normally. For many years I was content with an annual Christmas layout I made that consists of O Gauge size houses and an N Gauge two level display.
Now I built a portable 4 x 8 layout for my grandson to use in his apartment in Queens, NY which ended up staying in my basement because they had another kid. But every time they visit (actually tomorrow) we spend hours down there and at 8 years old he is still obsessed. I haven't been all that well lately, but I keep wanting to take him back with some of his trains to the NJ Hi Railers Club. He loved Ben and the other wonderful members he met there.
At nearly age 80 I keep saying building my own layout is "in the works someday". My mother lived to be 100 so maybe?
I know some people spend a lot of money on trains and I get the joke in the OP's question. Trains are pretty cool today, but I think the cost is turning a younger generation off and some of the QC leaves a lot to be desired.
In terms of inflation, I have looked at the surveys about it (quite a few). The top complaints aren't trains of course. They are (in order based upon several surveys) Grocery prices, Housing, and Gas prices. The reasons aren't difficult to assess. The term "greedflation" was coined after the pandemic, but it doesn't apply to all corporations across the board. Just the most significant ones that anger people the most especially the monopolies and the ones that collude.
It is pretty easy to look up the profits of different companies. I haven't looked up model train companies myself so I won't guess. But the way I look at it they don't have the luxury of true price gouging because they are in a limited market that could easily disappear if people stop buying making all of us who love model trains truly upset. That would especially be true for O Gauge because it is such a small market share.
Short answer is I wouldn't go back to work to pay for trains.
John