Sadly all the insides were missing. Anyone know what the going rate of these source books are? or if there is even a market for them? 

No idea. $50? It's a neat looking piece. Too bad the pages aren't there.

The insides are the most attractive to collectors, but the binders are neat to have. I've seen various ones pop up over the years empty and they usually go $20-$50. I just sold a source binder that had the dividers (but no actual paperwork) for $40 shipped a few weeks back.

I actually have the Source Book that matches that binder if anyone wants to buy it. Don't mind the other items in the pic but I found this on my computer from long ago.

I figured if it had the insides it would be worth more and more desirable, but thought that the binder is still it kinda cool. I found it at a thrift store so I wouldn't be surprised it they garbaged the insides before they put the binders out for sale.

the cover of the source book looks like a promo for RARE haha