If we say that the Lightning Network is a 2cnd layer application, targeted at micro transactions, would we clearly define what constitutes a micro transaction first? I recently saw individual channels that are funded by +/- 37 bitcoins. 
This was my first impression of what the Lightning Network was developed for and that bigger transactions would still be done on-chain. In your view, would you say 1 bitcoin is a micro transaction?
This was my first impression of what the Lightning Network was developed for and that bigger transactions would still be done on-chain. In your view, would you say 1 bitcoin is a micro transaction?
In fact, my very very first recollection of hearing Lightning was how it could be used to make sub-satoshi payments (less than 1 satoshi), if I recall, it was a discussion about what happened when 1 satoshi was worth more than 1 cent or more, so I actually only came to know about LN being off-chain and for micropayments a bit later.
I think, personally, a micro transaction for me is anything that would be worth around the min fee in coins I'd pay for an on-chain tx. This is around 141 satoshis for me now. Though I suppose paying 141 or 10% fee for a 1,400 sat spend is probably a better gauge of what should be micro.
Blockstream goods are all under $3. Maybe that's their idea of what's micro?