Some states have laws that require all wine bottles emptied in commercial establishments to be broken and sent for recycling...I seem to recall PA is one of those states. It is my understanding that wineries are not supposed to recycle their used bottles, unless they have been sent thru a certified "reconditioning" i.e. cleaning process. California has a huge "used wine bottle" cleaning facility and if you are in the area you can purchase bottles from them for a lot less. Wineries in CA typically have contracts with this facility to "remove labels, wash, sanitize, and box" all the bottles they send to them. Takes recycling to a whole new level!!
I would consider placing a "want" ad on the FreeCycle group that serves your area, and check Craigslist and even place an ad there, and definitely pick up the phone and make calls to wineries/restaurants/bars in your area. I have a local restaurant that saves bottles for me. I provided a large Rubbermaid bin with a laminated sheet with my contact info; they rinse the bottles for me and call me when the bin is full. Also, if you work somewhere and are able to--get the word out that you would gladly accept empty RINSED wine bottles from anyone that wants to drop any off for you, even accept as few as one (because they do add up).