I have a hard time narrowing choices like this, but I think I'd start with the things you're likely to use the most. From your list, it looks like you use a lot of individual paper and element packs, so maybe start with those. I am almost exclusively a kit scrapper, so I'd buy kits and probably not much else. I do have the Miss Betty alpha though, and I've used it on at least 15 layouts. Love it!! I have most of the kits you listed and Deerest Spring is probably my favorite. I've used it twice already.