I've got a Brinsea Octogon 20 and love it.
I contacted Brinsea in Florida directly, and asked if they had any "scratch & dent" models - they had just gotten a return that they could not re-sell as new; they recalibrated it to make sure all was working properly, and sold it to me for $70 less than new price, with a full warranty. LOVE the unit, no complaints, except it's a bit small-ish at hatch time.
I contacted Brinsea in Florida directly, and asked if they had any "scratch & dent" models - they had just gotten a return that they could not re-sell as new; they recalibrated it to make sure all was working properly, and sold it to me for $70 less than new price, with a full warranty. LOVE the unit, no complaints, except it's a bit small-ish at hatch time.