Archie's right, it all depends on what's included. Generally on larger collections where there is some kind of balance between rare and common cards the collection typically goes for around $1 per card. If they're mostly more common cards then it's obviously much lower and conversely, if there were more rarer cards you could probably get much more. Just for example, there's a collection on eBay of 200 cards that have been there for several weeks and relisted several times without selling with a starting price of only $6.99

So without seeing what's there it's tough to give an honest appraisal of what they might be worth. If you were close to the southern NJ area I'd be happy to take a look and see if I can help.