It does get down to one simple fact - demand for the models is increasing as more people seek out the older models so there is more competition for the same number of models which drives up the prices. At the same time, patience does hold into it and you can get below what the more common averages are with that patience, but sometimes we are talking 6 to 12months plus. Throw in people breaking into it all make judgements based on what they see out there and what they find as averages and sometimes those prices are way off and overpriced. This also drives up the average price. The sad reality is that no matter how low and 'normal' this community keeps model selling prices between themselves, as the demand increases, so too will the prices and the hobby will get more expensive, especially as the models get older. A Great Spined Dragon is expensive as it is, in a decade when it is 40 years old or 2 decades when it is 50 years old? Yeah, stuff is going to get more expensive.