I only own one Combat Machine and got a USP .45 as an Xmas gift. I've played 12-15 times in 7-8 months. I do wear camo, but cheapy stuff which is already fading massively and has buttons shot off the pockets.
For me it's all about the games. But giving yourself every advantage you can (within reason) is obviously smart.
Can't see me buying a new gun until I have to, where as one of the guys who started playing around the same time as me has already been through five AEGs and now has a HPA Tippman. He loves to play games though too.
A lot of it has to do with disposable income, I have two kids and a mortgage, but if I didn't I can almost guarantee I would have way more/better gear.
Horses for courses