The problem here is that you basically dropped a turd in the room and then insinuated the stink is somehow related to a company that many of us have had nothing but excellent interactions with over many years. It only gets worse when you attribute your dissatisfaction to an unnamed "authorized agent", "somebody who apparently works with them", "authorized sales distribution channel" (whatever the heck that is), or a "a sales guy working with SMC audio" (which is total BS).
The fact is you are not a customer as you have not purchased anything from SMc Audio or even interacted with the two principals. Your impressions are based on interactions with an unnamed proxy and the substance of your dissatisfaction seems to be the price of an amplifier that you believe to be too high because it has been refurbished and doesn’t have balanced inputs. You clearly do not understand SMc Audio’s business model or products. To imply their pricing is not "fair" and that their products don't "stack up against market competition" (i.e., a couple of visible name brands you are familiar with), is absurd. Did you even listen to the amplifier? I own a pair of their 650 wpc monoblocks because I like the way they sound in direct comparison to amplifiers I owned at and well above their price point. BTW, some of those "decades old chassis" are copper-plated steel, which you will not get from many (any?) other manufacturers. Sometimes, when you find yourself in a hole it is best to quit digging.