Whether it be fat or just simply weak it's no wonder.
a adjustable weight 5-50 pounds is over 200 bucks. Even a basic standard one size 50 pound weight is like 80 bucks. weighted vests are from 50-200 bucks depending on how much weight. treadmills/bikes are 200-1000+ and same way with other tools.
I understand you can do a lot free weight, but lets face it you're probably going to see faster results with the tools. But even for little stuff you're probably going to be spending 200-400 bucks at least getting a decent exercise set of minor weights and tools.
I can buy a few hundred backs of chips for that and it's hell of a lot easier to eat chips and drink soda than exercise. That's like 150.000 calories like 40 pounds of fat that you don't have to work for for the same price as the exercise equipment and you have to work with the tools after you get it for awhile before you see any progress.
It's no damn wonder. Exercise tools shouldn't be so damn expensive imho.