Here in Germany are some really nice 27x4 Displays available.
Overall Dimensions:148x51mm
Display Area: 108x37.6mm
Character Size: 3.20x6.75mm
The have 2 separate Controllers, one for the upper half ( 2 lines) and one for the lower half of the Display.
They only draw 6-8 mA
And they are 4,95 Euro ($6) only.
I use them on many of my projects as they have nice large Chars and yout can't get much cheaper.
If you add a small PIC, two AND-Gates and an Inverter to the Backside of the Module (there is plenty of space)
you have a serial LCD at about $10.
I think the Distributor ships even to the U.S. but ordering a single Module wouldn't make much sense, as shipping would be more than the price of a module.
attached is an image of a Module I have "serialized"
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