I will tell you categorically that ANY black bed trampoline is a low grade trampoline. You need a string bed to be considered a 'good' trampoline. I personally like Ross beds the most, and Aussie second, Eurotramp is sick too. A brand new non-folding frame aussie bed and springs trampoline costs $4200. A new folding frame ross bed and springs tramp is about $9000.
You are WAAAAY better off spending $4200 on the aussie tramp than spending $1700 on some piece of shit (yes, piece of shit) black bed trampoline. But if you have a 7x14 frame, you can just upgrade your bed/springs.
Go to springboardsandmore.com for aussie tramps. reboundproducts.com for ross tramps. Also try searching craigslook.com for Olympic trampoline and see what you can find (also try nissen tramp, euro tramp, 7x14 tramp, aussie tramp, etc).
There was an even sicker deal around in Cali a little while ago, but the post expired.
PS - if any of you know where I can buy a cheap duraflex diving board, please PM me.