I don't see any situation where a fixed and covered (that is, indoors with a modicum of climate control) layout would ever "need" its track replaced.
Modular layouts are certainly different. We had a modular and transportable layout that used Atlas track. It was too fragile for long-term banging around, even with care.
We were often fixing it. I'm sure some will disagree, but that was our experience.
Gar Graves would have been better, probably.
Lionel tubular (and clones) is the most rugged, as its DNA is toy DNA.
Problem is: it's ugly as homemade sin. Really. Can't make it look "good", unless you are going for the toy look, which we weren't. All the ballast and huge ties in the world are just lipstick on a pig.
It could be improved (Super-O-ish, with more metal, you say?) and still be pretty tough.
I have yet to decide whether Fastrack is a step up from PW, or just silly-looking. Depends on my mood.