Just as an anecdote - When I was buying my last car I went in and asked for just the base model with nothing added onto it, ie not even the "eXtra Special" designations, and the dealership said they probably won't have any for a long time and if I'd like to pay 50% more for one with some features added on.
I declined and kept looking at the inventory of the 4-5 dealerships nearest to me. For six months they never had a single base model.
I started looking at another maker and they seemed to have base models that just wouldn't sell, stuck on lots for that same time period.
> and the dealership said they probably won't have any for a long time
In my case, I told the dealerships I was okay with waiting up to two years to get the exact trim I wanted. I told them whichever dealership could get me an allocation first got the sale. Then I literally stood up to leave.
And like magic, they went to the computer and found the exact trim I wanted and got my allocation a month out. I was extremely picky on color and options, though. If I had been flexible on color it would have been sooner.
The sales people at dealerships will pressure you into upsells. They’re not going to turn down an easy sale if you demonstrate that you know what you’re doing. They were trying to upsell you.