I wonder if the comparison is fair. With the pneumatic partlist you get a set where you must do manual action to move the cilinder. With the LA set you get it by the flip of a switch. So maybe throw the PF stuff out for the LA, or replace the handpump with a compressor for the pneumatic set.
In both cases I think the LA set will be cheaper. If my comparison is fair I don't know, but I only want to indicate it heavily depends on the context you place it in.