Was gonna PO at BBTS but decided to wait.
As a rule of thumb I'll throw in a PO at BBTS if I have the slightest bit of interest in a figure. No NRD, no risk. Gives you plenty of time to decide if you want to keep the PO closer to the date of release.
I also use an expired credit card to place the order because BBTS isn't great about giving you notice before shipping an item. They don't try to charge the card until the item arrives and is ready to ship.