I've read all 8 too! I was a fan of Rachel Caine anyway, having read her Weather Warden books, so tried the first Morganville book when it first came out - 2006, doesn't seem that long! They seem to have more substance to them than certain other YA vampire books and as CB says, the threat of danger and being involved with these vampires is more traditional. You just know they're not going to take Claire (spelt properly, my sister is a Claire!) shopping
Eagerly awaiting MV #9 on November 1st