Interesting thread.
As for me, I don't think it went wrong; I've had the same camera for 30 or 40 years and - as it can be repaired - intend to keep it. I've had a few ( one or two) serious SLR's and the Bron but being long retired don't need them so much. The Bron went a couple of years ago.
But, a while ago they all started dumping film cameras and going digital and I was tempted by a lot of seriously good cameras that I could buy for a pittance and I've enjoyed buying and using them. I've also others I've deliberately collected along the way like the pre-war Leicas, Contax, Werra etc that I use from time to time. And one or two I had when a lot younger I've bought again for a pound or two and enjoyed again.
The real problem comes when you count them all and realise you ought to get rid of most of them and just concentrate on knowing and using a few. Sorting that out is a lot harder than getting to that point.
Regards, David