I meet with a lot of investors these days raising capital for my startup and the best ones are by far those that spend the time to understand the product we are building. Fred Wilson has some good advice – the faster you get to the product the better. An elevator pitch is the appetizer, but the main course is the product vision, how the product is sold, and how it works. In today’s Business Insider I ran into an example of an investor who clearly doesn’t understand the dynamics of the OpenTable product. Witney Tilson (a hedge fund manager) argues that OpenTable is overvalued in the slide below. One of his key reasons is the lack of natural barriers to entry in the OpenTable business. If you spend the time to understand the OpenTable product and ecosystem this becomes a rather odd assertion.

Why OpenTable has massive barriers to entry:
- OpenTable is a two-sided marketplace which have significant barriers to entry, see eBay. Lets say a competitor magically gets 10,000 restaurants to use their OpenTable clone — you have only one side of the market. Restaurants need new customers making reservations to make this interesting – which OpenTable delivers by virtue of its strong position in Google search results, integration with all the major online local reviews sites like Yelp.com, and increasingly popular mobile applications. Generating the traffic to drive to restaurants takes years to develop.
- Selling, installing, and maintaining an OpenTable system is not a simple or quick process. Selling to small business is time consuming and expensive. Once OpenTable is installed, it’s akin to installing SAP or Oracle Financials for an enterprise – nobody wants to rip it out.
Why OpenTable is undervalued:
- Significant barriers to entry — you would need a minimum of a $50M and 3-5 years to start chipping aways at OpenTable business. This assumes that OpenTable management is fairly incompetent and does not react.
- Flash sales: They have an audience and deep merchant relationships enabling them to layer a Groupon like flash sale – very lucrative.
- Mobile: The volume of reservations will increase significantly as their mobile applications reach critical mass.
- New lines of business: Once they wrap up the restaurant market their is no reason why they can’t do spas, hair salons, and even car-services.
Michael Arrington recently caught an entrepreneur trying to 
