Also note:
Helicopters. Using. Wheels.Also. These.*
They have to be move around as well, ya know. Especially since at least the Stiletto, Firebird and Saracen probably were deisgned with
typical hangars in mind just as much as the ones you use in game. Giving them skids would be kind of like shooting yourself in the leg before running off to war.
Come to think of it, from what I've seen, most helicopters using skids are rather light. The AH-1
(Cobra) is just under three tonnes, empty and a bit over four at max takeoff weight and the MH-6
(Little Bird) is a bit over 700 kilograms and 1400 at max takeoff. But that's just me guessing.
*This post would look so much better if the place had spoilers I could hide the pics in. But that's details.Here's another thing I found on the topic after finishing the post.