Personally, I feel like there is a flaw with fantasy games like Pathfinder and how they handle gold. I suppose it's subject to the world in which you're playing but gold as a resource is very valuable and frankly, heavy in large quantities(I would imagine).
With that in mind, I feel like a character carry more than 1000gp in his backpack should reconsider. Not only is he carrying a small life savings worth of gold around, but that 20lbs worth of gold would/should take up more space than you would think. That's like me stuffing my savings account into my wallet and then going about my business. While we're fortunate enough to have banks in our lifetime, fantasy characters aren't always given that opportunity.
I didn't really consider any of this until I received 500 fantasy coins from a Kickstarter I backed (Fantasy Coins LLC) and the amount of space/weight these coins had was very surprising.
My question is, is there a better way to handle fantasy currency or are we doomed to have wagons full of gold because we're all adventurers?
The Peculiarities of Fantasy Currency