Decide | 467 followers on LinkedIn. Decide is the only shopping service that predicts when to buy consumer electronics and appliances with no regrets. Decide.com utilizes a 100 terabyte pricing database and predictive algorithms to tell shoppers when to buy with confidence, or wait for a price drop or newer model to be released. Since launch in June 2011, Decide's price predictions have been 77 percent accurate and the average potential savings have been $54 per device.