The logic behind your thinking might just be true, but then again it can go either way. If someone has the money for a specific item, and they borrow said item from their friend to test it out for a period. They could either decide they don't like it, or it's not worth the pricetag, thereby lessening demand. They could also decide that it is actually worth all that money and buy it, increasing demand. This could also apply to those who dream of having some expensive item one day, then get a loan of it from a friend. They could like it so much they'll work hard for weeks or months to buy it, and feel entirely satisfied with their purchase. Much of the Runescape economy is so messed up it's entirely impossible to predict price shifts. The only thing certain is that Jagex will not let incredibly high-priced items rise by much more. Therefore, the only way is down. Jagex truly do want to give their players the freedom they crave with updates like this, so I'm sure most, if not all tradable items will be able to be lent. Given their track record of late, Jagex will also bug test the hell out of this, creating every scenario imaginable to make sure your items are safe. Personally though, I'm not going as far as trusting them until at least a day after the update. From what I've read and heard of the coming update, it will begin to sound a return to regulated freedom, however much of an oxymoron that is. I think this update might come out around August I'd assume. Combined with the coming graphical level, we might just entice a few of the old hands of Runescape back into the game.