Pressed for an answer, some folks say "I tried that once and it did not work."
Guys; ego deludes you into believing you will get it right on the first try. Most of the time, you won't. Doesn't matter if you paid $50 or $500 for a solo ad, or if you invested significant time and money in a self-hosted blog, or in anything you do online.
The "I tried that" delusion cripples aspiring folks because they are in 1 shot, or 1 month, 1 year deal mode. Like; you blogged for a year, have not made a cent and can honestly say you tried it. Not really. I have heard 7 and 8 figure bloggers who made peanuts their first year blogging. Chris Brogan took 8 years to get his first 100 subscribers.
Guys; don't give up so freaking easily. Do not panic. Do not surrender to the meme delusion of "I tried that" after 1 attempt, or 10 attempts.
Everybody you see who is highly successful online tried again and again, and again and again, honing their craft over years.
If you love your niche....keep....going.