Do you buy the stamps that come with collections? AC ?

I don't typically buy stamps sets to match collections, but that's only because I don't really do stamping with my scrapbooking. I'm also not much of stamping card maker.

American Crafts stamp sets are made of acrylic, not photopolymer, thus their lower price point and quality. I do not buy acrylic stamps ever, and any I've received from kits or classes I have either sold or donated without using. I'd rather use photopolymer stamps that I know work well, then mess around with acrylic stamps. I have a low tolerance for fiddly things, so YMMV.

Simple Stories stamps warrant the higher price point as they are photopolymer and (presumably) stamp well.

Only if I really like and want the stamps, not just because they coordinate.

I have a huge collection of stamps that I have accumulated over the years, so I’ve gotten a lot pickier about what I buy these days. In the past, I bought far too many just because they went with the paper, or were part of a collection. In many cases, they were a waste of money.

No, I haven't even noticed them, but I wouldn't buy them even if I did. I try to stay away from acrylic stamps, like Ryann. I'd have to really love them to risk the frustration. I remember Shimelle mentioning that she had stamps that went with some of her collections but I don't think most shops bought them so they ended up even cheaper at Tues Morning.

I have been buying the Club Scrap stamp add-on to their card kits, but I'm not sure I'll continue. In theory, one could use them to completely reimagine the kit, as one of their in-house artists does. Doesn't follow the cutting and assembly instructions, ignores the preprinted cut apart art and sentiments, and just creates beautiful stamped cards.

Or, also in theory, one could use them to make one's own art on the reverse side of the cut aparts after following the kit cutting instructions. But I tend to find that they don't quite work for that. If one of the preprinted cards says "every day of your life is special" on the outside and then "especially this one" and "happy birthday" on the inside, the stamp set will have the "every day of your life is special" sentiment but not the "especially this one." How can you ever use that?

On the other hand, they are high quality photopolymer and the images are often attractive. So they're worthwhile stamps, just not as useful with the rest of the kit as I think they ought to be. Or something like that.

ETA: It also occurs to me that when I DO like their images (lots of outlines, great for coloring), I am probably going to find the lack of coordinating outline dies for them frustrating. Didn't occur to me before last week when I got my P6, since I needed to fussy cut even stamps with dies.