I get your point, but many Local Fish Stores need to change their business practices if they want to stay in business, and show why you should spend your money there vs elsewhere. At any given time, you should be able to walk in and get everything you need to set up an entire system that day. They shouldn't have dead fish or Aptasia in their systems. If you bring fish that have outgrown your tank, or other livestock, they should give some store credit, not just take your “surrendered livestock”
Also, keeping such a sensitive ecosystem, you should have everything you would need in an emergency. Backup pumps, heaters, salt, medications, etc. plus, they are often the items they don’t have.