I paid 36,990 for my SR+ just a little over a year ago and now it is 46,990, exactly $10k more. All the car companies are making their money, it's just that Elon Musk has figured out a way to keep the extra for himself instead of letting a dealer take it. If I didn't like my car so much I'd think about selling it for a profit.
My dealer experience has been mixed. One time we went to the dealer with all the numbers that we could find online such as invoice, discounts to the dealer, whatever other info we could get. At the time it was still freely available but now you have to pay for that. But when we sat down and the sales guy saw we had it all we struck an easy deal of invoice less incentives plus a reasonable dealer markup for their efforts. The next time, after that car was stolen and then returned, we found a nice low miles used Odyssey at a Honda dealer and the sales people tried to pull every trick in the book. We just kept saying no, and then pulled out an online deal for that same car that was 2k less than what they were trying to get. The sales guy figured we hadn't checked because we didn't mention it. That was the end of negotiations, we got the car and told the finance guy where to go when he started trying to pull the finance tricks.
Trying to buy online was a very frustrating experience with the other makes because all the online listings said to call the dealer, and of course that just leads to them wanting you to come in so we can "make the best deal". Yea, right. Why have we put up with this for so long?