Lemme tell ya...
I roast my own and brew my own. Both are a blast and delicious. I've been doing both for about ten years.
I've been through about five roasters and have been using my trusty HotTop - http://hottopusa.com
/ for about 5 years. This is a fantastic roaster. It does 1/2 pound at a time, gets up to 420 degrees in the chamber on 110VAC (Even during the hottest midwest summers. If you've ever studied electricity, you'll know that's not an easy feat), is so quiet I can hear the crack ten feet away, and is highly maintainable.
I've replaced the heating element several times, the control board once (I wanted newer features, the old one still worked) and body parts once when it fell off a shelf 5 feet in the air. HotTop sells every
part online and their shipping is excellent. And no, I don't work for or rep HotTop. They just have a great product. Expensive, yes. But it works.
I roast 1-2 pounds a week (have college students living at home) and think roasting is the bee's knees. It is much easier than any brewing; extract, all grain, or anything in between. Takes me 5 minutes of effort, 20 minutes of time, sitting in my kitchen watching the HotTop do its thing. I'd recommend roasting to anyone interested in real coffee.
I've commented to friends that if I had to give up home brewing or home roasting, brewing would go, because roasting is much easier and provides nearly as much consumption enjoyment.