Parking, hunting, fishing, storage, farming, Xmas trees, farm stand, construction material/vehicle storage, beach parking/shuttle to beach, haunted hay rides/mazes, "tiny" houses on trailers, flea market...

Amazed, the investor just had to know how he had caught so many fish so quickly."

Fine fishing nets might work, bats seem to get caught in them and then you can call animal control to come and get them humanely.

Hobbies (fishing, hiking, rock climbing, etc.). 

They have bigger fish to fry.BBC, a conventional lender is your common mortgage broker and most residential loan officers at a bank.

The large wholesalers spend minimum 5 digits in hot markets where the profits are good like SoCal... one deal is so profitable like you've experienced that people ramp up the marketing efforts.Buying at 90% ARV from delusional sellers when hot foreign money that needs to be laundered is flooding your market makes profitability difficult and wastes a lot of time chasing the deals that everyone sees on MLS.Our company partnered up with a company that gets their lists in a more unique fashion than what is typically mentioned here and offer that to our clients for their mailing so they get better responses.It's better to dominate in a smaller market, than be a small fish in a competitive market is what I believe and what others have said as well in the podcasts.Even though our company offers direct mail and I've hooked people up, I think you need to re-visit your strategy and think about what you can do differently to improve the quality of your lists before mailing.

Even in my little submarket of inner loop (610 freeway) of Houston, there are bigger fish then me.  

Good sir you have taught a man to fish this day.  

@Chris Martin It's hard to tell but I'm pretty sure that my fish is bigger than yours

Don't waste time on ghosts, there are many other fish in the sea.