Are you suggesting it's to much or to little? Not really clear sorry.
Anyway if I wanted a sanding block I would prefer his at £25 over a plastic one at £10! If your suggesting premium tools don't have any need to exist...well I beg to differ(as do most on this forum I'd wager) start by halving £12.50 seems OK to me?
I personally feel Cork is an almost magical material for sanding blocks. Being strangely rigid and not distorting but also light and absorbant.
I am saying, only in my opinion, that it is far too much for a sanding block.
If people are happy to pay that price, for that particular product, then that's
wonderful for the maker, naturally.
In no way did I imply that premium tools have no need to exist, that is
gaslighting, and you would only need to look in my workshop, or ask my
long suffering wife, to see that I could never, in all conscience, suggest that.
Half of £12.50, by my calculation, would be £6.50, which starts to sound a
lot more sensible for a glorified block of wood. I don't really sand anymore
either, preferring planing and scraping, so that also probably skews my
perspective a little, but, even so...
Incidentally, I am also a bit of a fan of boutique toolcraft makers, and have
amassed quite a few little gems over the years. But, they would always have
to satisfy some basic criteria, such as working at least as well, hopefully
better, than their counterparts, being particularly aesthetically pleasing, etc.
More than happy to pay a premium for that, but the example of the sanding
block, in my eyes, just goes too far.
Brings to mind the tale of The Emporer's Clothes.