When I get new products like sunglasses or accessories sometimes I ask my friends how much they would buy them for. I’ve done this a few time and most of the time they come back with the question “We’ll how much did you pay for them”. The question is not how much you pay for something it’s what you can sell them for. The actual costs of rayban sunglasses are probably a couple bucks and they sell them for 100 times that. They spend a lot of money on advertising so you believe they are worth a lot more.
So don’t get stuck on how much you paid for your product but how much the market will buy them for.