I think if we can see some more market stability - more online merchants will adopt btc as a payment method - which in turn will reduce the amount of "Cash Exit" clients. - If you could buy fuel cards / clothing and even pay your electricity bill with BTC then you would be less inclined to exit.
It's just hard for certain tangible products to be paid for in BTC when there is no means to protect the buyer...
What effect does it have when people trade BTC for LTC for PPC etc? Would they be trading down and damaging BTC? Or helping BTC by providing competition and diversity?
There are a lot of cryptocurrencies but only three seem to have legit novelty and potential and that seems to be LTC and PPC. LTC is very well marketed, good logo, good name, faster, but it's also less scarce and it's not accepted anywhere. What about PPC? PPC is even less scarce and where would anyone accept it?