I just got two grand off MSRP on a Limited at my dealer here in northwest Arkansas a couple of weeks ago, but it was one they had trouble finding/trading for and it is still at least a week away. Another Limited sitting on the lot was going to be closer to three grand off MSRP but it did not have Nav, which I wanted. Another dealer offered $400 above invoice if I placed an order and waited a couple of months (since they could not get one either), but their trade value was terrible so I went with the first dealer.
I have a feeling that some dealers won't be making great deals right now - despite what some folks are saying - since a lot of their stock is sitting stranded in the back, and they only have a few models they can sell until the ban is lifted. I was working a deal on a Highlander Limited for a week and was just about to sign the papers when they came to me and said the price had just gone up $1,000 since they were not going to be able to get any more this month (this was right after the sales ban, but delivery would not have been until mid-February) - supply and demand they said. I told them I did not appreciate being treated that way and left - made a better deal at the first dealer on the same vehicle the next day so I was glad I walked.
Sounds like there are a pile of demo units at the Plano dealership if you don't mind "slightly" used!