I got my Majora's Mask New 3DS XL from Best Buy during the second wave that had a few hour window to buy it, I happened to not have mine cancelled like others did.
it cost me $213.74 total (including tax)
Before that, I had a Link Between Worlds 3DS XL that I paid $199.99 plus tax
before that even, I had an Ambassador Aqua 3DS that I got off of eBay A week after the deadline for connecting to the eShop to get in the program. I had to call Nintendo and make up a reason for why I did not connect to the eShop until after the deadline then they added me manually to the Ambassador program (this was before they caught on to people doing this and stopped allowing it).
I paid $165.00 for it as the seller left the serial number in the back cover picture so I verified it using Nintendo's Ambassador checker tool before buying it. The seller was not aware of the Ambassador program so I lucked out as others were price gouging for known Ambassador consoles.