People are out of work and with new regulations small businesses are going out of business.
Who knows, exactly, but they went OOBiz couple of years ago already, around Chicago! But, mmmm, now it's Hibachi Grill!
Same thing has happened here. I drove by and the parking lot was empty and no lights on. It always looked like there was a good number of patrons all of the time.
Because some other business comes along & buys em out. Or maybe the health department found out what really was in their food & ordered it to be shut down immediately, OR maybe the owner was that busy he/she can afford to retire now & enjoy their life.
Bad accounting, sold, owner died ?