I don't know why they haven't caught the mistake yet, but the Wal-Mart Paul frequents is still selling 30th AC for $3 each.
So far, this has meant I've been fortunate enough to add:
15 Death Star Gunners
8 Stormtroopers
6 Jawas, and 6 LIN droids...
4 Moisture Vaporators
9 Galactic Marines
2 Airborne Troopers
2 Honor Guards
For $3 each.
If only army building was always this easy...