Well, Jacobi Sales is one of the oldest and largest Cub dealers in the US. That day will never come.
Cub XT2 series (Dealer exclusive) has a Kawasaki Engine, the same one used in the Deere X300 lineup. Has the exact same Tuff Torq Transmission as Deere has, has a similar welded one piece frame with cast iron front end, and has a fabricated, welded deck to Deere's stamped deck. Never have any issues with the hundreds we sell, it's always the XT1 that is the same unit the box stores sell.
The biggest issues we see is normally poor setup at the box store whos selling them. They never grease anything, do a poor job of checking the oil, decks are normally not level, it's just always something. What I will at least say about the Deeres sold at Lowes is that Deere pays us to go to 7 area Lowes to set them up properly and make sure they are in correct working order before they are sold. So even if you buy a Deere from Lowes, you atleast should know its ready to go and has been set up by a local dealer to ensure everything is right.