I dunno -i think i disagree.If you cant be arsed to wait about for hours in the cold i dont think its a bad thing(i dont think i'd pay it myself mind you).Put it this way-a soundcheck is an experience you won't forget-yes its better to be invited in ,but at the end of the day if you're willing to pay mate,who gives a fuck!! i certainly don't care-its your choice .
If you look at how much Motorhead stuff goes for on ebay maybe its better to spend it on something like this than another overpriced record/shirt/programme etc etc.As the saying goes-the choice is yours