Quoted from Reality_Studio:The second advantage is that off ebay it will typically be a retailer which means you get an invoice, they declare the profit from the sale and hence you can tax deduct it if that's applicable to you.
Not following this. Are you saying you, as the buyer, can deduct expense of buying pins because you're an operator? Otherwise I don't see the argument you make to the IRS that you should be able to write off the expense of buying yourself new toys.