Maybe a couple of hundred. When I did my last saddle quest I was buying saddles on ebay, sometimes used, to try and then selling the ones I didn't like. So I didn't spend a whole lot on the saddles I tried and ruled out. Currently I am using a Terry Fly Ti on all 5 bikes. These have gotten really expensive so I'd be happy to find a cheaper alternative
That is actually a saddle that I don't much like, and I really can't say why. I've used the Concor forever and have had an old Turbo that I have tried numerous times over the years and it has always been removed for a Concor.
I have had lots of saddles I hated (passionately). Yes, once you have an idea of the width of your sit bones, flat vs curved, and general shape that works for you its easier to find saddle that works. For me, getting to that point was a multi-month trial and error. Its easier if you have two bikes so that you can use for the experimentationWow. I think a lot of people here would benefit from knowing the width of their sit bones. Or at the very least, knowing the width of a comfortable saddle they own.
I have never bought a saddle that did not work for me. But then I measure width myself in person, take a good look at the way it is designed (more flat or curved matters not just the width), and I have no desire to save weight on a saddle (or shoes for that matter).
I have ruled out many a saddle because they are too narrow, or too wide, or unpadded, or too padded, or too curved, or...
All of that applies to non-Brooks, btw. Road bikes for me, for a long time, have had Brooks. Still applies to mtb saddles though.