I just received an email from Mill City with a coupon code for $500 off a new 500g gas-fired sample roaster. Still makes it $4500--too rich for my budget. The code is 500GRAM, if any of you are interested.
https://millcityroasters.com/shop/coffee-roasters/500g-1lb-gas-coffee-roaster/
Edit: the deal requires the buyer to take delivery by Nov 1.
I got the same email this morning. Seeing that price again kinda made me feel good about my roaster purchase.