I think this depends. In quiet environments, that may be true. But in noisy environment, the difference can probably be more easily noticed. There had been a few members on this forum who tried both the 3 and the 1 and opted for the 1 because they could tell the difference. So it’s really subjective depending on the use model of the patient.
Your quoted price is really good from what I can tell. It’s good to see more online presence. It can only be a win-win for customers.