Not sure what exactly you are using it for, but you will only get 3 standard 6' x 4' runs with roof from this roll. On that basis the price looks OK.
I got my last 2 smaller rolls of weldmesh from The Range. Places like B&Q and some garden centres do the panels. These are much easier to handle as they are flat. Stuff off the roll keeps curling up until it is fastened down.
I would expect panels to be significantly more expensive (and harder to transport) so you may still get better value from the roll. I find it always comes in useful eventually.