To threadless or not to threadless? That is the question

Another question about my Mather build....
The frame came with a stronglight delta headset, the bottom race is cracked and if I'm honest I'm not a huge fan of how it looks. So I'm in the market for a new one. This got me thinking, do I stick with threaded or make the move to threadless? I know it'll be a case of new headset, fork and stem but it's not a bike I ever plan on getting rid of so don't mind a little extra initial expense, other than a weight saving is it worth it? Or am I being silly and should stick with quill?

Quills are great if you want to keep the classy vintage look, I myself prefer quills, but I use threadless ones as they're easier to source and hell a lot of options to choose from.

Edit: With the Mather frame, I'll stick with the quill stem. Cant see that having a threadless one ^_^

I do love that classy vintage look you speak of and have a beautiful hidden bolt stem in the parts bin, but something still draws me back to threadless

Threaded/quill for looks.
Ahead for function.

The issue with going threadless will be sourcing a decent 1" headset, don't mind spending the money for something that will last, but finding it isn't easy

I believe Chris King make 1" threadless headsets, which will last, and for which you will spend money.

The Chris King does seem to be the way to go, going to speak to a local frame builder about changing the steerer on my 853 forks tomorrow