Actually, the old Teiscos aren't that bad. For the day, they were probably a decent entry level guitar. The zero fret (which almost all Teiscos had) had the distinct advantage of insuring a fairly low action without requiring precision nut work.
The pickups were not very good. Most tended to be very microphonic.
I think the attraction of collecting Teiscos is that they were a LOT of guitarists first guitars - traded off as soon as they could get a name brand. Like anyone who collects things from their youth, they are grasping at the wispy threads of what life was before the responsibilities of adulthood sucked all the enjoyment out of it.
Wow, did I just say that? It has been a long day...