I think Vitra and Herman Miller do the ‘official’ reproductions of the original and run to £5k or thereabouts.
The affordable copies that I’ve seen have had a noticeably cheap look and feel to them. For me, part of the pleasure in owning a piece like this, aside from the beautiful proportions, is the quality of construction and materials used…the copies fell well short.
I hankered after one for years and even contemplated importing a one from the states (considerably cheaper at the time, even accounting for VAT & import duty). Luckily for my bank account, when I eventually sat in one I discovered that I didn’t find it all that comfortable.
If I were minted, I’d definitely have one as ‘a piece’, just to oggle.