Classic and Vintage Bicycles: What's it Worth? Appraisals and Inquiries - older trek 1100 worth $175?

Just saw this ad for a trek 1100. it says something about 6061t6...i believe that indicates something about the frame material though i'm not sure what. i do know the frame is aluminum.
as far as age, the sellers don't say but i'm guessing early 90s? if anyone has a more educated guess based on the photos, let me know!
anyway, is this thing worth $175?

It's worth it if it's in ready to ride condition - cables, pads, tires, tubes, chain, rings and cogs. And nothing is stuck, like the stem or seat post. It could be late 80's to very early 90's. A look at the vintage-trek.com paint scheme page may help you date it quickly, otherwise scour the brochures. There is some limited AL bike info on the site.

If it's your size, and everything is in good shape, needs no work, I think it's worth it. Not a steal but OK value.

Not a steal but OK value.

+1. Its a fair price.

Good price for a bike that small. But you better be pretty short, that is a small frame.

Moving to appraisals

It's either an 89 or a 90 and they were practically identical. Alloy frame with Cromoly fork, Suntour edge index components with a triple. +1 not a screaming deal, but if you like the way aluminum rides and needs no work, you could do worse.