I find some of this really funny. I am not trying to be antagonistic, but the right answer for you is the answer that works for you. Not the one that impreses people unless that is one of your criteria. What life has taught me is that for most things, there is no one "right" answer. I have been shooting PCPs for years, and I don't have more than $500 in HPA. Not because it is the "right" answer, but because it is a good enough answer for me, for where I am in life. I can't justify spending $5000 on my whole airgun hobby, let alone a compressor. So my solution allows me to enjoy the hobby with the money that I am willing to spend. As long as your solution works for you, enjoy it. And don't worry about how much other people spend.
JMO, YMMV, Etc...