Festive, expensive and impressively mint Sinclair ZX81 in kit form

If you simply want to have a legendary 1k Sinclair ZX81 for your vintage computing and retro gaming needs, better avoid this rather impressive boxed, new, Sinclair ZX81 with the Buy It Now price of £225.00 (seller ships worldwide). The average ZX81, after all, goes for less than a sixth of that price. Then again, what we have here is a truly rare, mint condition, obviously unassembled ZX81 in kit form, that might have sold for a more than reasonable price two decades ago, but is as collectible a Sinclair as they get these days.