Informix 4gl vs Powerbuilderish products?

I work in a comany using 4gl, online 5.0, dumb terminals, 50+ multi-users. Does anyone have any thoughts on Informix 4gl vs Powerbuilderish products? Here are a few of mine for you to agree / disagree with. 1. With 50 data entry multi-users using the same 4ge, 50 $300 terminals is a very cheap alternative to 50 PCs all with powerbuiler Enterprise loaded. A definite plus for 4gl. 2. Powerbuilder has a much more user friendly interface and is easier to program (think of what a pain input arrays are in 4gl). 3. Powerbuilder is Future 4gl is past. (just look at the emphasis, or lack of, Informix put on 4gl these days.) Which way would you go?