If you take your first experience: "My first crappy product made $8K a year in profit 0 advertisement" You might draw the conclusion that '0 advertising is no way to build a company'. In which case you'd have never bothered trying the others.
Adwords and SEO are extremely valuable and profitable when done well. Bear in mind that Bingo Card Creation is a relatively small niche. There are people doing finance related things with adwords who make millions.
That's not really true. You would be encouraged if you made 8K off a crappy product with no advertising. You would think that making money is easy and that you could do much better with a less crappy product. True or not, that's how I'd read that statement and feel about that situation (which is actually pretty similar to my actual situation).
