So this may already exist somewhere but to go along with other price databases I was thinking of making an MP only one for figures that were sold at Australian retail bricks and mortar stores, and perhaps with the recent rise of Premium Collectables add them in to the later releases of MP's with that postage may need to be added depending on item.
Now some of these will require our old rusty brains to dig deep into the memory banks and we may have to discuss to confirm the prices of some of the figures, also add which store and if Hasbro or Tak/tom release, also is they went on clearance include that price as well.

MP-01 Optimus Prime Target $159 ( I think) Hasbro first release with clear autobot symbol on the top of the box
MP-03 Starscream Toyworld Hasbro $99 (?sale price)
MP-03G Ghost Starscream TRU TAKTOM $249.99
MP-09 Rodimus Prime TRU Hasbro $49 or $48 clearance price.

etc etc
I wont go too nuts on this with research and numbering older hasbro figures yet because it may already exist so please if anyone knows where that would be great, otherwise let the pricing begin