What is a realistic price to pay for a glass marker board? I am looking around online and finding super expensive kinds and some really cheap ones too. I want quality but do not need the top-dollar model just for my own home office. What have other people paid and was it worth it? I also wonder if someone can give me the name of a good company? I hate buying online because I never know if the customer service is going to rock or suck. I would really love to get positive feedback on a good business before I buy. Thanks!