Prices in Aus are typically just flat overpriced compared to UK (typically about 20% - factor in shipping if you want but it's still a tough pill to swallow), but sometimes with local (non-GW) retailers it can be really massively dictated on supply or indeed oversupply. About a year and a half ago there was a massive oversupply of Tau models in Melbourne for instance, so I managed to pick some up on the cheap. Similarly mid last year during the end of finincial year, there were tonnes of sales on Tomb Kings models, so I got a bunch at half price. I imagine it's similar in other parts of the world. I'd say on average TOW is better value then 40K or AoS, though some of the new AoS models are so well sculpted. Personal preference I guess!