Epson Workforce Pro WF-7820 is just $200 on Amazon right now. Brother MFC-J5340DW is currently at $280.
Tabloid printing used to be quite inexpensive... Any 11" wide dot-matrix printer could manage it.
The rise of inkjets made it relatively more expensive. I resorted to rescaling tabloid (11x14") printouts to US Legal (8.5x14") to keep old business applications working.
In recent years, as A3 format copiers (with network printing) have become very common in offices everywhere, it's becoming inexpensive to print on tabloid sized paper once again.