My advice: if you like a Brooks or equivalent, get one. Get a used one / old one if you can. I do, as long as they're in good condition, and generally pay €20-€50. They're permanently on my shopping list when I go to swap meets or cruise the classifieds. Just bought a second NOS "Donza" last Sunday for €20.



They last a lifetime if cared for, and fit on any bike. A worthwhile investment, IMO.
In the old days, the pros would change their bikes regularly, but they'd keep their saddles and handlebars. Just so you know.