Or you can watch Craigslist and occasionally find a great deal if you are very careful.BestBuy sells the 2015 MacBook Pros as well. I just purchased one a few weeks ago. They also show up from time to time as Open Box stock, which I have had good luck with. On their site currently is a new 2015 MacBook Pro, 15", Core i7, 16 GB RAM, 256GB storage for $1499. Lots of ports, SD card reader, MagSafe, and a real keyboard. What's not to like?
To wit, I just bought a 2017 15" MacBook Pro with another 2-1/2 years of AppleCare+ (verified with Apple), 16GB RAM, 2.9GHz i7, and 512GB SSD for $2,200. I had to watch for weeks, and follow up carefully, but I found a seller who knew what they were doing, so all the back and forth arranging the sale was rational and straightforward (a welcome change from other Craigslist experiences!).
I love it when a plan comes together. :-)