Would you, for example, go for a lesser fabric with your favorite tailor to save cost instead?
I would definitely go for a lesser fabric, H. Lesser, that is.
As for the issue of quantity vs. quality, my father taught me well that it's a much wiser choice, in the long run, to choose quality over quantity. I'd much rather have 3 or 4 quality suits that will provide many more years of enjoyment than 10 or 12 mediocre suits that will disintegrate in due course. As for your decision at hand, my philosophy is to stick with what works for you. If you like the work of your current guy, consider yourself fortunate. Knowing how to measure and fit a garment are critical steps, and just because the other guy offers the same quantity of them, doesn't necessarily mean they will yield the same results. You might be surprised with a real "find", but then you might discover that you often get what you pay for. That said, one can also pay excessive fees for mediocre work. I've had the worsted wool pulled over my eyes many a time. Grayson