You cannot truly profile on a behmor though. What Tex wants costs about $5k-$8k
. Even the Mini 500 supposedly does not hit it's 1lb noted 'capacity' and it costs $3k.
I think one of the problems with this is that reliable motors for anything that can run 24/7 are not cheap. Just for a reliable motor you would be looking at $500 dollars, then add a centrifugal blower that can handle the high air temps it will need to deal with for add $300-$500 (a fan with plastic in it would not work), if you want a cooling tray you need to add another blower which will run you another $300-$500 and another motor for $300-$500 to turn the agitators, now you need a 1/8" to 1/4 inch SS drum so add $80-$100, you still have to pay a skilled welder to make the frame and drum vanes with most master welders charging $40-$75 per hour and you still have to do 'finish' work on the roaster like paint and polish.
A high quality 1lb roaster would cost a manufacturer in the US so much money to make that I am sure they try to avoid it like wild fire. Not many people would pay a 'keystone' price double that of what the manufacturer sank into making the roaster. In a manufacturing business like that you need to at very least double your money with the low number of machines you would sell on a yearly basis. So, say they spend $2.5k-$4k making it you are now at your retail price of $5k-$8k.
The costs involved in such a small roaster are likely why most manufacturers avoid them altogether and just go with 1kg capacity being their smallest roaster. A consumer / small commercial roaster can better justify spending $5k-$8k on a 1kg or 2.2kg roaster than a 1lb.