The only trouble I see is deciding whether BitSilver or BitShares is going to rise faster in that scenario. I'll probably hold both, knowing I can change my mind every 10 seconds for pennies.
Ah I'd missed that as an advantage over physical, bitSILVER being a crypto is very practically instantly and freely exchangeable.
I suppose there must be paperwork for big silver trading transactions. Avoiding that's another advantage of bitSILVER.