Definitely NOT good value IMO,
Poor quality pics but even so you can tell some of the covers are in at best poor condition the Bad Co cover is a good example, it looks very tatty to me. Also, a fair proportion would never be worth more than a couple of quid even in NM condition. Personally, without the full information (runout etchings etc.), I would also take the 1st press ones with a very large pinch of salt. The description only every says "look good" which implies to me a car boot or bulk buy lot and someone just trying to turn a profit, not a collector getting rid of their cherished vinyl.
I wouldn't pay more than £150, no correct that I personally wouldn't pay diddly squat for these. But others may think differently.