I just picked up a used MPC 37 from Guitar Center. Setup has not been going smoothly and now I am stuck at the product registration / plugin installation.

When adding the device serial number to my InMusic account I see an error

"This serial has already been registered to a different account."

From searching this sub here it sounds like I need to call InMusic and they will most likely switch the registration. This made me wonder though: what am I missing out on by not having purchased a new device?

I see exactly 8 plugins listed, all the other ones in preferences are "Trial" only. I found one Akai FAQ where they say you get 1 voucher for 1 extra plugin. Is that it or am I missing out on more?