I have found the Promethean boards very durable. Only concerns i have is:
The corners have been known to be broken off, this exposes a weak part of the board. and if not delt with striaght away, if the corner is damaged, it damages the matirx, thus the mouse icon flicks around the pen when appled with the baord. I ahd this happen to a board, unfortunately it was not reported to me. Had to get a new baord. great thing is though promethean do refurbished boards at a smaller fraction of the cost.
The Pens can become a little worse for wear i.e. the nibs wear down or the barrel button becomes stuck, usually due to been dropped. good thing is promethean supply replacement nibs free of charge. as for the pens chassi and barrel button breaking, if the board is under warranty, you can replace both pens free of charge. Other wise you can buy 10 peans for around £100; £10/pen.
They sound good!
I might have to have a play with one at some point. Trouble is we've kinda set a standard now with smartboard across the campus (about 70 boards).
I really dont want to do this. Especially if they expect support them over the summer. The director of ICT said it was something he might consider as a last resort though. I guess we might have to go with it. Gonna go with that signing the board in and out thing on top as well.
Cheers for the suggestions everyone!