What is the average dealer mark up?

You can wax a car with snake oil?

" The same btw is true of most things, including cars. Which is why car dealerships are so incredibly profitable."
Not exactly.  I retired from GM and the dealer cost was typically 15-18% under MSRP.  Dealers would get a 3% bonus when a car sold, which was all the profit they got if they sold you a car at "dealer cost".  Dealers made more profit per unit on used cars, which they would buy at auction nearly every day.

Keystone (2X) is pretty standard for B&M dealers in most consumer goods, except for food and vehicles. That’s why  I ALWAYS compare online sellers (Amazon, Crutchfield, Reverb, and Sweetwater) generally before buying   Last B&M purchase was floor model top of the line Senheiser ‘phones, a Melos DAC and SONOS streamer at a Sacramento dealer Xmas sale. Mostly I buy from Amazon. 

@badger_erich... you are clearly an idiot and a troll!!

Well done alll... discussing margins and what Dealers can or do make on a sale. This should be taken down immediately.

Just another clear example of how unprofessional the Hi-Fi Industry really is. For those of you who work in the business or have worked in the business, shame on you to even disclose margins, Again, just goes to show how unprofessional you are and the business as a whole. To think you are somehow being clever discussing it is even more embarrassing and ignorant.

Margins should never be disclosed as selling Hi-Fi as a retailer is hard enough as it is.

Another example of why forums like this do nothing good.

+1 rwisem. Car dealerships make money on service and trade ins. The profit margin on a new car is low. I would think in high end audio that they would need to have a 100% markup just to make overhead and have some bargaining power with the buyer.  I feel for those guys, must be incredibly hard to keep a business going with all the info the buyer has at his/her fingertips.