If you like the Carradry they can sometimes be found with different branding for a bit less money, Aquapack is one. They're imported bags and the only manufacturing by Carradice is the fitting of their crude, though adequate, fixings system.
I have no brand loyalty, I have luggage from Carradice and Orlieb, plus Altura and Vaude. I don't know how Carradice haven't harmed their reputation with this range, put it up against the similar Ortlieb and it's inferior in every way, materials, fittings and construction. OK, it's a bit cheaper, but if that's a priority you could go to Ali Express. I don't get the idea of putting the label first, I'd choose the style of pannier I wanted, then the manufacturer doing that best, but it's not my money.