Joining at a class at Platinum usually results in the ‘ammo can’ with the yellow training pistol, hat, USB drive with training loaded on it, etc.
The big upgrade, IMO, with going to Elite is access to the entirety of the Ask an Attorney video series. It’s something like 25 hours total and is more like a podcast so you only have to listen to the audio to benefit. You should get at least the first episode already, all of them at Elite.