First off: Festool guarantees a 10 year supply of spares and support after end of production. Even if they'd stop the Conturo tomorrow (which I'm fairly certain they won't) you'd still get 10 years worth of mileage out of it.
Secondly: the consumables are not produced by Festool but IIRC by Jowat Adhesives, the only difference is the 63x26mm puck shape instead of the 63x80mm stick shape used by many other manufacturers (e.g. Holzherr). If Festool were to stop selling glue pucks you could simply buy some "Jowatherm" sticks instead and cut them it down into the appropriate size to fit the Conturo's glue port.
As far as the justification for the tool itself goes:
* if you do a lot of edgebanding, I'd 100% look for a stationary edge bander that also does the round-over in one pass. If you only do edgebanding a couple times a year, get the Conturo. If it's just once or twice a year, do it manually.
* if you have enough space, better get a stationary edge bander. If you do not, get the Conturo.
* if you frequently do round shapes: get the Conturo
* if you edgeband on site: get the Conturo.
* the initial investment is much more than the tool itself. Account for the whole system to work efficiently, i.e. get the set-variant, the table insert (or MFT), and the MFK 700 set with the 1.5° base. Also consumables are quite pricey compared to competitors using glue pellets (much smoother process though and far less mess)
Btw: you might also wanna check out Virutex or Holzherr, they have some excellent tools for melamine / edgebanding that are on par.
