No, it is just mark up at the importer/supplier level.
Panda is in Hong Kong, so is Kinetic, which is owned by Lucky Model.
The Panda MATV is $45.99 at Lucky Model, just so happens that it is the same retail price from the US Importer.
However the Kinetic one is going to be $49.99 from LM, $74.95 from the US Importer.
Just doesn't add up, other than the fact that the US importer for Kinetic is putting a ton of markup on this kit that the Panda importer isn't.
Was the same with Tasca kits when Dragon USA was the importer, their Sherman kits retailed for about $99, once the importership changed hands, they are now down around $60-$65 depending on the version. Just a matter of greed on some of the US importers.