Firstly you should realize, you can sell them NOTED to Tenzing at the death plateua mountain pass for 45K each.
Secondly, thousands of people just went from having under 10M gp to several hundred million gp's. Seriously, there was so many people who had like 20K climbing boots because they were rich and PK'd alot, they now just gained over 1B in an update and can sell those boots for around 750M instantly..
I just don't understand what Jagex's motive was for doing this and how they couldn't see what increasing a popularly used and stocked items price by 35,000% would do to the economy..