Selling of Sports card Collection and Receiving 1099-K

I started selling off my sports card collection that I have been collecting for the last 35 years. I have been selling them on Ebay. I received a 1099-K form from Ebay with all of my sales for the year. I am not selling for a business but just moving on from the hobby. Do I need to report this at a Hobby income, miscellaneous income or not report as income at all. Some of the cards have increased in value from the time i have purchase them but most have decreased in value. If I have to report the income, would the cards that loss value offset the cards that increased value?

 

Thanks!