Having recently acquired a couple of tremendous Arcade1Up machines on sale at a local Walmart. Very tremendous. I thought we needed a dedicated Arcade1Up deals thread to keep track of deals. I know deals people, believe me.
These deals are very YMMV but it seems many, many Walmarts are clearing these out right now. Clearing them out. Brickseek links provided where available, check your local stores for price and availability. Brickseek is not 100% accurate though, as I said ... YMMV.
Search your local area, or any ZIP, for in store deals with deals.consolekits.com (Site no longer exists)
Asteroids, Major Havoc, Lunar Lander and Tempest - as low as $75 in store, very hard to find or $164.99 online
Centipede, Millipede, Missile Command, Crystal Castles - as low as $75 in store, very hard to find or $174.99 online
Final Fight, 1944, Ghosts'N Goblins, Strider - as low as $125 in store $150 at Walmart online
Galaga, Galaxian - as low as $75 in store $150 at Walmart online
Mortal Kombat I,II & III - as low as $150 in store $199 at Walmart online
Pacman, Pacman PLUS - as low as $150 in store
Rampage, Gauntlet, Joust, Defender - as low as $75 in store $199 at Walmart online
Space Invaders - as low as $75 in store $150 at Walmart online
Street Fighter ll - as low as $75 in store $199 at Walmart online
Golden Tee - $299 at Walmart
Marvel Superheroes - $299 at Walmart
Teenage Mutant Ninja Turtles Arcade Machine w/ Riser - $349 at Walmart
Star Wars w/riser - $399 at Walmart
Pac-Man Head to Head Arcade Table with Two Pac-Man Gaming Stools (No Galaga or DigDug)- $450 at Sam's
Street Fighter Head to Head Arcade Table - $430 at Walmart
Legends Ultimate Home Arcade Special Edition - $500 at Sam's
Arcade1up Riser - $44.88 online or order for instore pickup
I myself picked up the Final Fight and Rampage machines for $125 each for the Oval Office in the White CatCondo.