Metro Denver’s track record for listing homes at the correct price is so bad that an Austin-based real estate technology firm called True Footage is using it as the proving ground for GlassHouse, a new digital platform for buying and selling real estate. A common problem in the real estate industry is that sellers have an overinflated sense of what their homes are worth, said John Liss, the founder and CEO of True Footage, which is launching GlassHouse next week in Denver, the first step in a larger rollout. “Everybody thinks their house is the nicest one on the block and nobody wants to leave money on the table, so they try to sell for top dollar,” he said. Agents willing to tell sellers what they want to hear are more likely to get listings than truth-tellers experienced enough to know that overpricing results in wasted time, frustration and a lower sales price down the road. Denver is one of the worst markets when it comes to unrealistic listing prices, according to a True Footage analysis.