[diolpah]

Online store owner here. We do collect and pay sales tax for California residents, but not residents of other states. The reason we don't collect sales tax for other states is:

1. We aren't required to.

2. Doing so would be a disincentive to sales.

3. Management of, and compliance with, thousands of different state+county+municipality combinations that change constantly would be way way way beyond the scope of an organization as small as ours.