The price has been set deliberately low to ensure easy accessibility and affordability for regular families. If people start to print these resources in huge quantities then, as their creator, I lose out financially. I'm not trying to make millions, but this is my livelihood.
By all means photocopy as many as you need for the number of kids you have in your household - large families are very welcome to copy as many resources as they need! But if you'd like to make copies for people outside your home - e.g. for a youth group or a bunch of friends' kids, then please email me at email@example.com as I'd love to bless you with a good deal. I'll always try and work with you to come up with something fair :)