Sad, but inevitable.
Like most of the posters, I was hugely inspired by the Maplins catalogues of the early 80's and spent many an hour going through 74-series and 6502 datasheets and dreaming. Despite that residual fondness, Maplin have for years uncomfortably straddled the consumer and electronics hobbyist / DJ markets. I suspect that the hobbyist market is done for - people used to build partly to learn and for pleasure, but also that it was a route to obtaining a piece of kit for the same or less than it would have been available for commercially. I don't think there are many that would own a traditional class AB power amp for example, let alone choose to build one rather than buy Chinese modules from eBay. Not really a viable retail business sadly.
I did use my local Kingston Maplin from time to time as they still had a useful line of tools and sundries. I must go and clear out their stocks of antistatic foam cleaner as it's the best general purpose cleaning agent I've ever found!. While I'm there, I need to stock up on solder station tips, flux cleaner, shrink wrap....
Strangely, Kingston Maplin was moved to a shiny new store that opened about three weeks ago. A strange business decision given what has unfolded this week.