Walmart has the Transformers Reissue G1 Optimus Prime Collectible Action Figure (No Trailer Included)  for $41 with free shipping. Converts between tractor trailer & robot modes in 6 steps, and includes blaster plus 3 other accessories.

Transformers Reissure G1 Autobot Blaster for $24

Transformers Reissue 4.5" G1 Astrotrain for $41