Some really helpful stuff in there mate!! Thank you.
I have had a look at a few of the re-marketing things like you mentioned but still need to put them into place. I'll get on that, and all the other ideas :)
The credit on purchased items is a really good idea! I remember when I got Komplete 10 Ultimate it should have been about £1200, but because I already owned Maschine I got it for about £750 using the crossgrade option. It definitely works!