Apparently you can get a K40 through Walmart now 
https://www.walmart.com/ip/CO-Z-Upgraded-40w-CO2-Laser-Engraving-Cutting-Machine-Cutter-Water-Break-Protection/706677308?wmlspartner=wmtlabs&selectedSellerId=1994&adid=22222222228064528561&wl0&wl1=g&wl2=m&wl3=169591287347&wl4=pla-277414657817&wl5=9027300&wl6&wl7&wl8&wl9=pla&wl10=113137381&wl11=online&wl12=706677308&wl13&veh=sem
With 2 out of 3 reviews identical fakes, and it’s not actually from Walmart. Trips the run away button
Yeah it’s by one of their other party sellers. Walmart trying to do the Amazon thing.
And they even have the low end $349 model:
Pro-Tech 12"x 8" 40W CO2 Laser Engraving Machine Engraver Cutter with Exhaust Fan USB Port
Replacement Tubes too!
Check out the laser tube’s exit-port detached heat exchanger.
(Pre-damaged for your convenience!)
Pro-Tech 40W CO2 Laser Tube for Laser Engraver Cutting Engraving Machine
A “care plan” on the cheaper one??? Wonder how that works and what is covered? Grin
@Steve_Clark Seems like pretty much everything. I don’t think that know what they are getting themselves into 
Probably not the tube through since it would most likely be considered a consumable.
Let’s see how long until they realize what kind of mess they’re getting into with that “care plan”.