Hello Pedro here from Uruguay.
Man you know what! I just made an exchange of instruments and i feel like i got a good deal (maybe not but im happy).
I used Mercadolibre in Uruguay (similar to Amazon) and just yesterday i exchanged my non used AKAI APC40 for a Roland A500-PRO. Both midi controllers, but with differences. However the Roland has a better background the MIDI integration with FTP technology.
With the AKAI i was stuck to use it with Ableton; this new Roland controller and keyboard gives me freedom to choose any DAW and i feel damn happy!
Where do you get your stuff? i love music instruments :)