I see what you mean. They don't have much north of Manchester.
One good thing about BDC is that they open at 7:30, so you can pick-up materials and go straight on to a decent start-time on a job if need be.
I'm going to have another moan about lack of stocks though.
20mm black PVC conduit fittings: 3-way tee box, only 7 in stock. Spacer bar saddles, 30 in stock. No, not 30 packs, just 30 actual individual saddles!
Did I use B&Q for the rest? You gotta be kidding! They sell saddles at 98p. for a pack of two and the 3-ways at, IIRC, £1.49 each!