Cheap Serial LCDs
erco
Posts: 20,259
3 16x4-ish LCD boards 4800 baud for $19 shipped:
http://www.ebay.com/itm/Lcd-Display-16-x-4-Lines-Micro-Bulk-Lot-3-/350219964507
http://www.ebay.com/itm/Lcd-Display-16-x-4-Lines-Micro-Bulk-Lot-3-/350219964507
Comments
embedded-lab.com/blog/?p=30
Of course if you require the RS-232 levels, it is a much bigger issue.