Depending on a lot of factors, that Verizon FIOS or cable router you got for free may not be good enough to support your restaurant.  When your business relies on the internet and your network infrastructure, don't skimp.  With higher-end routers and access points you can:

1. Segregate customer and business internet access to guarantee internet bandwidth for your mission-critical applications.
2. Force customers to agree to an internet usage agreement prior to granting access.
3. Encourage your customers to "like" you on Facebook.