I purchased 2 vouchers from Groupon which seemed to be a very good deal only to find out that Optical Depo has made this Groupon deal as purely a money making trick instead of marketing/advertisement tool. Once the staff knows that the customer is here with a Groupon vouchers the price on prescription glasses sky rockets Seems to me that they just want customer to buy nothing from them unless they pay what they demand so that they can make money off the voucher price. I wasted 36 plus 20 dollars on parking just to find out how this works. Too bad this is not just Businesses but hGroupon is also part of this money making tricks. Don't fall for this. This is a scam.