The Alternators version of Smokescreen is on sale at Toys R Us B&M today for $20. If you check Amazon.com or other sites they're selling it for $30. The US version of the toy is all plastic unlike the diecast metal Japanese version.
Update:
Amazon.com lowered their price as well today to $21.99.
Update:
Amazon.com lowered their price as well today to $21.99.