In my PbP games I prefer the abstract Wealth system of d20 Modern. I personally think it makes things move much smoother, of course as GM I'm handling all the mechanics so tracking finances is just a hassle I don't want to deal with. I'm just now implementing it in my fantasy game (slowly converting from D&D to d20 Modern ruleset) so I'm not entirely certain how it will work, though I'm hopeful. Right off I can see some advantages, like not worrying about every little copper spent at the inn or purchasing generic adventuring supplies (oil, rations, rope, etc.).
As for the resulting generalization of a treasure hoard, I think this actually gives you more leeway. Often the parties I've GM'ed/Played have been solely concerned with the value of the hoard and not the contents. Now I just figure the value, assign a Wealth increase and then I can describe the contents as I please. Now individual party members can take that silver braclet out of the hoard and keep it, not worrying about it being "converted" to it's gold piece value for the good of the party.
As for the resulting generalization of a treasure hoard, I think this actually gives you more leeway. Often the parties I've GM'ed/Played have been solely concerned with the value of the hoard and not the contents. Now I just figure the value, assign a Wealth increase and then I can describe the contents as I please. Now individual party members can take that silver braclet out of the hoard and keep it, not worrying about it being "converted" to it's gold piece value for the good of the party.