Thanks Lori - I'm prepared for it to be expensive. At least I think I am. We'll see if I go into sticker shock when I ring up my cart.
Thanks Nerys, sounds like you know your stuff! I'll definitely check out some of those videos. I often buy sets, but you're right, you end up with colors you don't need. I bought some thread sets and now the colors I have aren't necessarily the ones I use the most. But I am prepared for the day when I make a purple quilt.