Well think about it, actualy sandblasting glass goes for about $50 - $70 per sq ft, here in NY that is. And on-site sandblasting, forget about it. So at $42 per sqft, that is a great discount for the client looking for this alternative etched glass effect, mind you , pricing etch film / frosted vinyl is different than other films, and typically more. This is not just a frosted banding, this is drop out lettering, if it was just a straight banding, ok I will say $1500 - $1800 installed, but given the text, this job is easily over 2k, maybe 2500 pushing it, but if i knew client was gonna be like this, the price just went up 300%. I'd say $2200 just for that room. Look at it, that takes skill to match the panels letters like that. C'mon, You can get $1400 selling a banner, this is definitely worth money. Thats why i wouldnt go back, you already discounted the job, what more do you wanna give away to this client. Just cut your losses. When you price a job, think of how much value it is to the client, the more he would value it, the more the price, and in this case, obviously it was such a big deal for him, the price should've been much more. And when you price these jobs with your standard sq ft rates, take the entire glass even if your are only doing a portion of it and calculate that way. 3 ft x 8 ft - 24 sq ft x 4 panels = 96 sq ft x $30 sq ft = $3000. , and at $25 per sq - $2400. Still this job is over 2k.