Recommendations on how to deal with left over cards.

Hi All,

Each year I buy few box's or a case of NBA cards, go through them and keep the rookies and get the ones I think may be of value for the future graded.

1. I'm curious to know what other members do with the left over cards?
2. Is selling them as a bulk or separately on eBay etc. worth the effort?

Completing sets is not my thing, therefore I am left with thousands in card organizer box.

Thanks in advance,

Regards

Dv