Dealerships often get more than MSRP, but they are often making money through hidden fees like a high interest rate on a car loan etc. Prices may also increase when inventories are low, but generally it’s through a wide range of up selling.
Put another way, dealerships can afford a large sales staff because it’s making them money. One highly profitable sale can be worth more to a dealership than several average sales.
That's not true. Each trim package has it's own MSRP, and while a dealership may inflate the asking price for a particular model with a particular trim package or features, few people walk into the dealership having no idea what the standard asking prices are - and willing to pay full asking price too.
Of course dealerships make money from financing terms and leasing - and yes things like "window etching" and more are pure profit for the dealership. That doesn't change the vehicle's out the door price.
Supply and demand can impact the customer in a positive or negative fashion. Many people really end up paying under MSRP, but not everyone. It’s not uncommon for "market adjustment" on an in demand car to push people over MSRP. Similarly many buyers don’t negotiate well and simply get taken advantage of.
However, the most common way people pay over MSRP is with leases or alternate fees. Dealerships simply have a multitude of levers to work with and can insert many meaningless fees.
Destination charge is the most common but hardly the only BS fee. The price is what they charge you, not just another line item on your bill.
At a traditional car dealership, practically nobody pays sticker price... the price you see advertised is the anchor point to start negotiations, ie. "worst case price".