I am sure we will see more and more of these. It is less then $10 of parts (maybe a bit more - it is an arbitrary waveform generator), and they mark up the retail price by $400.
For me the catch is it is easier blowing a function generator output then a scope channel input. Particularly if I accidentally plug a cable into the wrong BNC connector. If someone else is paying the repair bills, then great - add the function generators, logic analyzers, DMM's, entertainment centers, coffee makers, whatever.
Imagine - one mistake and you loose your scope, your signal generator and your logic analyzer all at once.
Richard.