Maybe, but it's fine for smaller retailers. They can just hold the Bitcoin themselves. Maybe they'll see it as an investment.
Unless they're got a really strong interest in Bitcoin, it's really unlikely they will want to hold (can you blame them?).
All the retailers I've spoken to as part of my day job really have way to many other things to worry about. Even reduced txn fees don't seem to be a big draw and the variable indoors 3G coverage between networks make in person payments very difficult to demo convincingly.