Are Eosone speakers worth anything?

IIRC they were made by Polk and sold at Best Buy. The brand is relatively unknown -- and sounds a bit like a "white van" type name. I think you'll find that this will keep their "value" low. I suspect that you'd be doing very well to get $300 for the entire set.

I agree that it's not worth dealing with packaging and shipping these, which is why my estimate was based on a local sale. Local sales of relatively unknown brands are increasingly difficult, and sales prices are correspondingly low. But you could probably sell them locally for what I quoted if you're in a medium to large town and you're willing to wait it out until a buyer comes along.

On the other hand, they *would* make a nice gift to a friend...