The question is, how balanced is the consumer market between eco-conciousness vs. an "I want it now" mentality. I think given the drive towards sustainability and climate awareness, for instance how the plastic revolution is changing, this might work -- but not for a few years...
It will be interesting to see how this model develops but I do not see it as a threat to existing sellers or competing products. I see it more as a great way for Amazon to build research into market gaps. This is something retailers should be doing themselves.
This further solidifies Amazon's business model of being truly omnichannel and to dominate the ecommerce space. Amazon in Australia is still relatively small and its FBA offering is equally minimal, so the location of Selz will also not be just by chance.
They form a strong part of the new online business model but seller aggregators are limited in that their acquisition can only focus on businesses that are 90 percent+ Amazon FBA sellers only, and the bigger picture now is traditional brick and mortar brands using multichannels to sell.