So Erik and I finalized our discussion on Santa or no. I listed my cons (materialism, pulling away from the together aspect, not wanting an imaginary guy to get credit for what we scraped together, how difficult I must have been when I told my mom "Well, I'll ask Santa!", not wanting my kid to sit on some grown man's lap at Christmas, etc.) and then he listed his pros. He expressed how he wanted her to have that magic like he did. He said his mom would help out and "be" Santa on some of the gifts, so not all the pressure would be put on us. I remembered a printable on Pinterest I'd found once for a Christmas list to Santa to help keep kids from getting too greedy. I pulled it up.
The link went to a blog called Home by Heidi, but it took a lot of digging to find the right entry. It turns out she, too, found it on Pinterest, and it is an idea I've seen in various printable forms since. Erik loved it. He said his mom would be excited to buy her a book, and his Aunt Julie would be all over the clothes part. And his mom fills a stocking from Santa every year. So we wouldn't have the entire burden, and she also wouldn't get greedy. So you could say I caved, but I really think it was just a good compromise. Santa is on!