Many thanks for the replies.
Another few queries if you may.
I guess this may simply come down to SEO, but do you keep the title as
My Associates Store - {Keyword Phrase}
as maybe to get the clicks and trust, you need to include that it's Amazon at some point. So that when people click onto your store they assume it's just part of Amazon and will happily purchase. Now, I'd probably dive in and change it to something like:
{Keyword Phrase} - Purchase {Keyword Phrase} Here (Amazon UK Store)
Do you know of any decent Amazon Store templates, if there is such a thing? As the default one does look rather plain and not professional enough that I think would make people want to purchase.
Is there a limit to the amount of stores (Tracker IDs) you can purchase?
Also - something that I noticed. When you search for available Tracker IDs and it says the one you searched for is available; if you decide not to take it, but then search for it again a few seconds later, it doesn't seem to be available. It's as if Amazon has temporarily made it unavailable.
Thanks again, it seems a very interesting method.