I'm guessing this hasn't been updated for a while? I've been following trilogo prices for the last 6 months or so and they have sadly risen well above most of these estimates, both on eBay and in private sales.
To be fair Edd - prices have been shooting up over the last 6 months to a point that you can almost name your price for some things - 1250GBP for a Palitoy 12 back C3PO, $150 for a beat up Trilogo IG88 (sold) and $65 and $85 for a painted and beater Hollow Tubes Tusken are just some of the prices I have seen on FB today.
I think anyone attempting to update this sort of matrix at the moment has such a sparse range of prices for things like Trilogos and other harder to find items that it would be nearly impossible.
"I'll probably be broke and homeless but I'll have a hell of a collection!"
Sorry guys, I know I started this but I haven't bought a figure for over a year now and haven't really looked at prices. I think it is in need of a good update but haven't got time to start at the moment, maybe over Christmas when things are a bit quieter?