I've had my eye on a couple. The Walrus Julia has a great reputation for modern chorus, and I have a Walrus ARP-87 which is neat. But I had a Boss CH-1 in the late 90's and I think I'd want to play one of those again.
In fact sometimes I'm tempted to put together a mini Boss board with a CH-1, a BD-2, a DD-8, maybe a couple other fun things. Also, I really wish Boss made an RV-200. Then I would be tempted to put together a DD-200, RV-200, MD-200, and OD-200 board.