Often they come with an impressive feedhorn and some sort of LNB.
This one appears to have an LNBF mounted to it.
Not sure if it's all original, but might work as-is.
If I were getting it, I might slip in the PLL LNBF from SatelliteAV, but otherwise it's fine.
The included non-penetrating roof mount will be attractive to some.
Worst case, you can set it out in your garden, and not have to dig a hole.

For someone who wants the whole package, $100 is a deal.
Don't think there's a 1m dish anywhere you could get shipped to you for the price.
The NPRM might set you back $60-100 or more.
I'd snap it up at $50, and think about it at $75, but don't need one desperately enough for $100.

A 1.2m would be another story! :up