Yeah, #18 rocks. Here's my copy.
I'm still missing 11 of the first 26 issues. I don't have #s 3, 4, 5, 10, 11, 13, 14, 17, 20, 25, and 26. However, in many cases this is due to the desire to get value with the purchase (an added challenge with pre-Batman Detectives). I know where a number of copies are that I'm missing but I'm not sold on the price. Also, I don't like the covers to #5, #10, and #20, so I'd really need to get those cheap if I get them at all. (I also don't care for #21, which I have, but it was a great deal).