"see the part where i say its $80 for a refill" Yep

do you see the part where you said "not hard to fix rust for $50"

do you also see the part where you said its $100 odd for rental?

so if you have no gas where does it come from?

sure you can do rust repairs for $50 but not everyone has access to free disks and free gas and a free welder...

bit of a false figure if you ask me