Do we want Bitcoin to be a currency used for all types of transactions or a transfer of wealth?
Do we want an altcoin to be used for micro transactions and push for a two coin system? if so which coin?
I don't think having another coin for micro transactions is a good idea.
For example, I have a bank account, but also have bills in my wallet and change in my pocket. If all these were different currencies, it would be a pain in the ass to know exactly how much money I have. What if I want to withdraw from an ATM? How many Billcoins are my Bankcoins worth? If I buy a coffee and pay with a Billcoin, how many Changecoins will I get in exchange?
Everything should be the same currency, and Bitcoin is capable of handling microtransactions. I don't understand why people say the opposite.