I offer the framing to my gallery clients as a near cost price change. I'm in the business of selling my exhibition prints and do not see the framing as a money making part of my business. This way get my print exhibited in the home or business just the way I want everyone to see my work. This always leads to more sales in the end. Most galleries bend over the client, with no happy ending. This way I never have a complaint and I always get referrals. Just my philosophy. But I have been doing this for more than 20 years. Even when showing in snooty galleries my images always look better than any others. Bad glass, bad lighting, bad frames can ruin just about any artwork. Take away the variables and you win considering everything else is equal. T
But I would never ever use reflection control glass, even if the client prefers it. I show them the difference and they always go for the my glass