Has anyone bought and roasted green coffee beans and was it worth the effort?

Not commercially, but for yourself, I ask because I truly believe the quality of beans at the store today do not produce the same coffee I was accustomed to, besides they tend to be over roasted the majority of the time. An old standby every day coffee, Millstone Columbia Supremo, 5–10 years ago, was outstanding, chocolaty and velvety, not any more and hasn’t been. Green coffees have sparked my interest, for one they are a lot cheaper and their is more variety; question is, whether roasting your own beans really worth the effort. What I have read you can use a hot air popcorn popper to achieve a roast level you prefer. Just wondering if anyone has gone this far for a great cup of coffee. I am starting to think the big names have snatched up all the primo beans and the average American customer is left with less than primo.