Some of the above fits what I have seen personally...some not so much.
In addition to our 1 perfectly functional Obi box we also have an Ooma Telo - which started being troublesome many weeks ago - so:
I started watching the Obi2xx pricing a while ago in case we needed to ditch the Telo.
From the start of that time no matter which site my searches brought me to - the rock bottom pricing had been around $70.
Then the pricing quickly multiplied no matter whether it was the big A, Newegg, fleabay sellers, office stores, wallymart - or random 3rd party sellers on any of them.
Good thing one can still use a sub-$20 generic ATA with a low priced ITSP & then simply forward the GV number to that.
If this insane pricing sticks around it will only chase more folks away from using Obi boxes, I think.
A brand new Obi2xx box for even ~$50 would be great though, and they'd likely have to ramp up production of the innards (which likely come from offshore makers for all of ~$2 each...just like the innards of the Ooma boxes do.).