Can't really speculate on the price as such, but I can tell you clean Warriors/Archers/172s, etc., are hard to find. I have had several recent students in the market for the entry level single engine piston, and have a hard time finding anything on the market at all that isn't a complete basket case.
The panel has a lot of upgrades which is desirable. The ADS-B box is somewhat non conventional, which could be a minor detractor but at least it has ADS-B. 1400 SMOH is high time in my book. It could last another 600+ hours easy, but as a prospective buyer it would be smart to keep that in the back of your mind you may be in for an engine at anytime.
$80k may be slightly on the high side, but supply and demand. Supply for Archers seems to be reasonably tight at the moment. I don't think it is extravagantly overpriced.