Curious who thinks it's a major advantage?  Current Bitcoin publicity is huge.  Short of the president buying bitcoins it's hard to think of it getting any bigger.  So publicity angle is underwhelming at best.  Ease of trading if thought through seems more of a negative because it isn't actual xbt ease of trading.  If a dentist in san diego as you put it sells apple and buys xbt fund the fact is they aren't buying xbt but instead are buying just paper.  Reminds me of MP calling it a valueless receipt.  Instead of reducing volatility it only increases it.  Instead of xbt being used as a currency it becomes a penny stock pump and dump.  Hard to see bitcoin idealists seeing this as a major thing.  I could be wrong though.