I have put small amounts in but most is earned on sire (and powered up). I think that people such as yourself won't have many regrets in the future except perhaps not buying more.
I think many on here simply cant do this though due to financial constraints. I see your frustration and I feel it too.
Many can't and this is why the opportunity to earn here is so good, it gives them that chance. take what is needed and power up even 10% and it will make a future difference.
I will continue to power up because I believe in the system Im using. I hope my confidence in this is correct. I havent taken anything out so far and dont intend to in the near future.
Have you got your comment rewards set to declined for a reason?