Why does it cost so much for a Synthetic Oil Change?

Why does it cost between $50 to $100+ to do a synthetic oil change when it only cost $20 to $30 for a regular change when virtually the process is the same. Furthermore when the actual oil prices between regular and synthetic is only a $5 to $8 difference. What do the extra $70 apply to?|||A typical price for a quart of oil is $2.50 for conventional and $6 for synthetic. At that rate, considering the average car will use 4 quarts, the oil alone costs $10/$24. Add $8 for a filter and you're at $18/$32. The rest is for labor and profit.|||Obscene profit, mostly. I change my own oil and spend right around $40 for 4 quarts of Mobil 1 and a filter from the dealer. I'm sure both conventional and synthetic oils are less expensive in bulk, so $50 is only a little pricey but $100 is outrageous.|||It's a 'sucker tax'. I paid it once too, don't feel bad. Buy the oil from Wally World or wherever, and bring it with you.|||Go to your local gas station that has a garage %26amp; ask then how much to do an oil change if you supply the oil %26amp; filter....|||In the back of the shop it's known as the "Idiot tax". You can extrapolate from there.