So many retailers support accountless Paypal Express checkout that managing accounts is much less of hassle than it once was. Prime's, and by extension Amazon'

So many retailers support accountless Paypal Express checkout that managing accounts is much less of hassle than it once was. Prime's, and by extension Amazon's, real moats are 1) that sweet sweet 'free' (actually 'no marginal cost') shipping and 2) aggregation. Google Shopping is trash, as are most shopping aggregators.