I really think the BM machine is overdone.
All you need is a heat gun and a bowl-within-a-bowl (or a nice double-walled bowl, or some way to keep from transferring the heat right out through the bowl) plus a way to cool the roast.
Adding a bread-machine is unnecessary, but will make roasting more convenient. I think people are intimidated by the level of effort required to adapt a bread machine when they could just dive in with a heat gun and start roasting, then when they bitch and moan about how their arm gets tired, *THEN* worry about upgrading.
I think *all* roasters should at least mess around with a heat gun, even if that isn't the method they end up using. It's a great fall-back in case your primary roaster bites it, very minimal in terms of outlay, and very satisfying. Nothing like the smoke in your eyes and chaff in your hair, smell in your nose and hearing the cracks super clearly. You notice little things, like when the chaff comes off the beans early in the roast, and again later as the crease opens; the puffs of smoke (steam?) announcing that 1st crack is imminent; you can see the changes in the bean continuously, without a trier, how they plump out and smooth out.
Heat Gun is like a range-finder 35mm camera with full manual control.
Behmor is like a full auto camera with 8 different "modes", but no manual control at all.
Oh, crap, you're too young to know what a rangefinder is
