microtransactions can happen offchain. Why would they need to be on chain?
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It's not your storage but the storage of the people on their systems. Maybe that's why you like to waste it?
You can save peer storage only if the microtransactions are done in some centralized service, but why you deny people to use cryptocurrency for their microtransactions?
If you cant afford to dedicate the harddisk space for blockchain, well you can run some lite client instead...
certainly don't deny people to use crypto for micro stuff, but maybe the bitcoin chain isn't the right place for that. Reddcoin or dogecoin comes to mind ...
I don't want a lite-version. Why should i use a liteversion and get centralised network and a cartel so that everyone can send their 5cent transactions?
Your argument (in case it was one) is invalid.