I've been watching the bidding on this over the last few days, and for a long time it was hovering at the £1000 mark. I thought;
'If I had a spare grand sitting around that I didn't mind spending, I'd definitely pay that for it. A bit more, even.'
...but £4300??? WAY out of my league that's for sure!
Congratulations to the lucky seller! 
Fuck me is all I can say.
It looks like the sweetest classic you could get but £4k wow.
Tempting me to buy any Amiga hardware its a better investment than any shares!