@Julio Franco Julio, it isn't entirely accurate to blame, (or credit), Microcenter's Intel price reductions on "Ryzen".
First off, Microcenter's low ball prices are on "walk in sales" only, and while everybody with an internet connection can buy from Newegg or Amazon, there simply aren't enough stores within convenient travel, ("striking distance"), for everyone in the US to take advantage of these bargains.
Microcenter does business with a gambler's heart. They always advertise "combo offers" with additional discounts, for buying the CPU and a compatible board at the same time, banking on the fact that at least some of their customers will buy the rest of the system parts from them. (They hate it when they see me coming, or at least it's a conceit of mine to imagine that is so). CPU plus a board savings right now are running at 30 dollars off for the pair.
Anyway, Microcenter doesn't stock a full line of Intel chips anyway. They bring in a select few to their retail stores, those which they feel will be the best sellers. This at least partly explains the extreme discount on the i5 6600K, as technically, it's "last years model".
So, a couple of weeks ago I went to Mc and bought an i5-6600K for 190.00
(*), and this Gigabyte Z170 board:
http://www.microcenter.com/product/452536/ga-z170m-d3h_lga_1151_intel_motherboard for a grand total of $255.00.
The GA-Z170M-D3H is a Matx version of an ATX board of the same number. (Without of course, the "M"). It was originally stickered at $125.00, marked down to $95.00, and went out the door with me for $65.00!
(*) Since I've had the CPU for less than 30 days, I might actually be able to get a price match against the current $180.00 sell. However, it would likely cost me about $6.00 in gas, plus wear and tear on the car to claim it..
I honestly think the fact these parts are technically discontinued, along with Microcenter's sales tactics, had a lot more to do with the pricing, than Ryzen.
And since, in your review of the new i5-7400, the i5-6600 basically eats it for breakfast, along with the fact I should be able to install Windows 7 without too much difficulty or effort into a system based on those parts, I'm going to say, somewhat immodestly, "screw Kaby Lake and Ryzen, I win!"