I see that Agate is going to have their own blockchain. Is there a specific reason for that, why not use ETH blockchain and save money?
Problem with not having your own blockchain is that you depend on others,while you can make your own blockchain that fits your need perfectly.
And keep in mind that Agate blockchain will be POS and ethereum blockchain is still POW and it will stay like that for couple of years.But POS is future,especially for this kind of use
That is also big factor,POS is simply superior to POW and it is the future.POW is of course still good and can be good for some use, but for scalability,POS is better.