I stopped by my local Kubota dealer this morning for oil & filters. They are one of the largest in the northeastern US. Their large showroom, which usually has more than 2 dozen tractors on display, was mostly empty! There was one lone USED 
L3010 on the showroom floor with a SOLD sign on it!  Their lot, which normally has close to a hundred machines available, had only about a half dozen used tractors! 
On a normally busy Saturday morning there are usually 6 sales people available but this morning, there was just one!  He just shook his head and shrugged when I walked into his office.  When I inquired about a new flexwing finish mower, he shrugged again and said he could put me on the wait list.  Right now, the wait is 8 months!
I've seen low stock periods before over the years but nothing like this! Is this happening all over or just here in the northeast?