Commodity price of domains at different pr levels

What is the base price of a domain of

pr1
pr2
pr3
pr4
pr5
pr6
pr7

assuming the pagerank is legitimate?

 

just estimating

pr1 = 8$
pr2 = 8$
pr3 = 20$
pr4 = 100$
pr5 = 500$
pr6 = 800$
pr7 = 1200$

 

Thanks PeterHugo, anybody else?

 

I don't think you can really have a "commodity price" - reasons for buying could include the name itself (keyword friendly, appropriate for the project etc.), traffic, age etc. all of which are factors determining the value. Again, where you try to sell it makes a difference.

I picked up a PR5 site on another forum for low xx - and I've seen PR3 sites on the same topic go here for low xxx. Go figure

 

What forum was that?!?! That domain must have been illegitimate if it was at that low of a price.