Uh so you wrote that bad code isn't a factor .. imagine if it had taken you 2 weeks to write the code instead of 6 months and you spent the rest of the 2 years

Uh so you wrote that bad code isn't a factor .. imagine if it had taken you 2 weeks to write the code instead of 6 months and you spent the rest of the 2 years on customer discovery instead, imagine if you were able to make significant feature changes to your product in a few days based on what you found out about what your customers wanted .. do you think you would have been more successful? The fact that you used lines of code as a metric for how much work you put in, and the fact that you think 30k is a lot of code .. and you used php/flex .. I don't want to rain on your parade but there are MUCH MUCH better coders out there, who can do stuff much much faster. I don't necessarily recommend the following languages overall but you might want to check out ruby or python and see what is possible in just a few days.