Unexpected Venue Issues

My wedding is now six months away, and I booked our wedding venue over seven months ago. Now I get an email from them saying that their alcohol policy has drastically changed, and it has me reconsidering everything I thought I had planned for our reception. They now require us to buy all alcohol through them for over twice what I had put in my budget, and they will calculate price per drink instead of per bottle/case like I had previously thought we would do. They also are encouraging us to only serve beer instead of a full bar with liquor (I don't like beer) and say they that we cannot bring any outside alcohol, even for ourselves (which means no pre wedding champagne, etc). I have considered doing a shorter reception with just a dinner and a few drinks there since we already booked them and made payments, but then having the dance and party after at one of the local bars in town if I can find a space still available. Any thoughts or suggestions?