Unless the amount of data you are collecting is increasing at a vastly unsustainable rate, you will be making megabucks and be able to afford a team of engineer

Unless the amount of data you are collecting is increasing at a vastly unsustainable rate, you will be making megabucks and be able to afford a team of engineers to undertake a major redesign for version 2. But picking technologies based on scale at the onset is going to make getting to that point all the more unlikely.