I evaluate such decisions using three measures: 1. What is my time worth? Estimate how much time do you want to spent at most to buy a phone. 2. How much enjo

I evaluate such decisions using three measures: 1. What is my time worth? Estimate how much time do you want to spent at most to buy a phone. 2. How much enjoyment do I get from this activity? Estimate how long before you get bored with the "chase" of finding phone. 3. Is it a need or want? Need gets handled quickly, want gets deferred as long as possible. You spent 20 hours on research, assuming your time worth $20/hr, you could have spent $400 more and get a $600 phone right away. Assuming you will enjoy the "chase" of finding new phone process for a few hours, let's say at most 3 hours, you could buy $540 phone after spending 3 hours. It is a need and not a want, so I will default to buying as quickly as possible once the enjoyment of "chase" has waned. In the end, I would have upped my budget to $540 of money and 3 hours of time to find a new phone.