My angle on liking a silver standard is that it would be nice to have the variety of different coins, but without having to track individual purchases of sacks, chickens and pieces of chalk!
Definitely in 4E, but also in 3.5E for anyone not tracking minutiae, coins smaller than a gp are pointless detail after 1st level. that's a shame, it's a little bit of colour lost for no good reason.
For money, a lot depends on what PCs can spend their treasure on in 5E, and how that scales with level. Not seen that yet.
In fact, I have no idea what PCs will be using their cash treasure for in 5E core rules. It's not even clear whether motive will be primarily mechanics-based or roleplay (PC "lifestyle") based.