The New Bright loader, dozer & excavator I had 25 yrs ago, if I tried to move anything more than sawdust, the plastic gears skipped & grind & BROKE! ..and they cost a helava lot more than $10 or $20!
With a bit of time & patience and some good ol' fashion ingenuity you can build a satifactory real metal working loader model... check out RCLogger's build thread in the construction forum and several others like him using basic tools to build their constr equip models!