I've bought a few things from Coda Luton - Acoustic Guitar, an echo pedal and my beloved ukulele. Had a guitar set up there too. But mostly went in for picks and other sundries.
As mentioned Coda Luton closed down... I think they just kept going until their rental term was up.
I went to the Stevenage branch for a repair to a banjo..... and at collection time had to wait around a while amongst all the stock.
But a roomful of guitars, basses and so on doesn't really interest me.
I just go into the shop on the rare occasions I am after new gear (or a repair), look at the minimum amount of objects to make a selection and leave.
I know it's unusual, but I can't be the only one... can I?