Nice set and moderate prices for the N90s. I bought such a camera about 2 months ago (called F90x in Europe) and it's a wonderful camera.
The rubber on the back door tends to get sticky on all N90 cameras in the end, but you can get a new original back door from Nikon and replace it.
If you were in Europe I would take one and give it to my daughter. She wants to learn analogue photography this summer
(Shipping costs cross Atlantic is a killer ....)