The reason they survived is probably because they were owned by their bank, HSBC.
Bought my DSLR from them about 6 years ago via their website and last went into a branch about 11 years ago to have some passport photographs done.
Their units will probably be taken up by betting shop chains with loads of people in gambling money they have just borrowed from a payday loan company or loan shark.
Its very sad our high streets will just have betting, pawn shops and payday loan outlets on them soon.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen => Freeola => Vivaciti (using O2 Wholesale DSL) => Xilo (C&W Wholesale) => Xilo (Be Wholesale)
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.