One countertop salesperson told me to consider granite because the price has come down a lot over the years and that some is already pre-sealed and if not, then just use a very high quality sealer to seal it and it's just as good as quartz. I've also been to granite remnant yards where they sell remnant slabs for $10/ft, but you are on your own for fabrication, transportation and installation. By the time you add up those costs, is it still a deal?

I chose my fabricator based on their ability to do seams well. I have seen seams they have done where you can barely tell. Someone would have to point it out to you. I doubt you would notice right away, especially with quartz since most don't have the dramatic movement some granites have.

I know that one part of the process is that they vibrate or shake the one piece agaist the other for 30 min. I have seen some really lousy seams (chips, glue) over the years so I was willing to pay a little more for a nicer seam.

Good Luck