quote:When does it end?
It doesn't, but once you start focusing on things like "Highly-Detailed" cars and engines you've automatically limited what you buy.
Still there's enough out there that you can spend as much as you want. I have an Atlas O ARA 1932 boxcar painted for Seaboard Air Line and it is beautiful, clearly my favorite boxcar so far. Every time I put it on the track I stop for a second to admire it.
My favorite cars are tank cars. Right now I have only 6-7...I must get more
(I'm even thinking of getting one in G scale just to display it)