No, people don't have 300 razors looking for the one. At least I don't have that many. I find there are some few razors out there that just seem to exhibit a combination of qualities that make them outshine others but that doesn't mean any quality razor can't give you a BBS shave. I suspect if you had the time and patience and the skill you could bring all razors up to the highest level but you're really slicing hairs here (pun intended).

If you're talking vintage pieces there are many factors that can affect how it shaves and sometimes simple honing ain't enough to get them where they ought to be. It may take an additional level of skill to correct defects or work around others. Even with new razors they are hand crafted and show variability which translates into different shaving qualities and abilities which brings us back to honing skill.