Fundamental Logic was the first company to offer a Bus Pirate for sale. Their Bus Pirate v1a through-hole kit is currently on sale for $20.  v1a is completely compatible with the latest firmware updates, the main difference between v1a and v2 & v3 is the connection type (serial vs USB) and the pull-up resistors (manual vs software controlled).

If you’re looking for a through-hole Bus Pirate kit, $20 seems like a great deal. Fundamental Logic had good prices on international shipping when we last checked.

Thanks Marc!