I agree with what Thomas above re: the pricing.
Have to be mindful when working with T-Rail if you haven't worked with it before. It's not anywhere near as flexible as regular tubular track (or any other kind of track I'm aware of). Actually, I think the best way to approach it is there's no flexibility in the track at all, so you need to have your layout space conform to the track and not the other way around. If you attempt to tweak track sections you can potentially break the tie plates that are molded into the ties as well as damage the rails themselves.
If you plan to buy any switches you need to be mindful of those as well; the earlier 731 switches had guide rails that were too short and didn't handle wheelsets with scale sized flanges very well, causing derailments, so a redesign was made on later switches that included longer guide rails to address this problem. Check for frayed wiring and also be aware that these switches were vulnerable to warpage to the base & the frogs, so you want to make sure to look out for that as well.
