I've become a purist with most of my bikes, wanting to keep them as factory original as possible. This is especially true in the case of the Black Lightning (saddle being the only change on ALL of the bikes I ride). I waited for years to find one, and it will probably be another few years till I find another.
Having a flat tire as part of the total cycling experience is highly overrated. Knowing how to fix one quickly is not.
'85 Trek 460 road racer
'89 Raleigh Technium PRE
'79 Motobecane Super Mirage