As I said somewhere else on CB+, prior to 1959 American comics weren't distributed in Scotland/U.K. So as a pre-teen who loved comics and read anything he could get his grubby paws on, I only experienced British and occasionally, Australian comics. (Apart from the odd newspaper section or DC that someone had been sent from a relative in N. America.) Spinners were seldom seen in newsagents and in Airdrie, a fair sized Scottish town, 12 miles from Glasgow, there were a few newsagent shops which had comics - Beano, Dandy, Eagle, Marvelman, School Friend, etc. and pocket libraries such as Super Detective and Thriller Picture Library. The shop I remember best was next door to the Pavilion Cinema and was run by 2 older ladies (well I thought they were old!) and had a wooden couuter with newspapers, mags and some piles of comics. Above their heads were suspended various publications on a string. This shop was special because you could sometimes find Aus. comics and to me they were exotic. Imagine the excitement generated by one of those early Frew Phantom covers on a wee boy who was not that aware of Ameican superheroes.
By the '60's, american comics were available in local shops and spinners weremore visible but some of these shops were simply too small with not enough floor space to have them and comics were piled on the counter. Distribution was patchy so you never knew when a new bundle would turn up but fortunately, comics didn't really feature continued stories, so as long as I got my Batman fix, I didn't care.
Later when I was working, I discovered a 2nd hand shop in Bridgeton, Glasgow (no go area after dark and none too safe at times in broad daylight) that had PILES of old comics and that is where I made acquaintance with Kirby's 4th World and got back into the comics I had given up for a while because I was supposed to be "grown up".