Hey there, this is Aaron.
Thanks for posting such an informative analysis. Definitely, it helps out a lot of people out there who has zero clues of how the crowdfunding PR firms work in general. In fact, they often eat up a big chunk of money from you and spend a little on promoting your project. Also, by right you understand your project more than they do, why hiring somebody who doesn't fully understand your product themselves, while hoping they can target the right audience on your behalf?
The key part here is to spend $$ on targeting the right audience, period.
As I have been in this field for a while already, I do have some other trick for project creators too!
Here is my tip to spend significant lesser money by DIY your own crowdfunding promotion, all by yourself.
Trick #1 First, you must know your audience. This is easy. I am pretty sure you know who is going to be your buyers. Let's say, you are selling a gaming mouse. Your right target audience should be someone who is young, perhaps below 30 years old, male, interested in pc games, equipment gears, a location with many students, and so on. Playing with your ads by creating a few different variation, spend little for each, from there onward you will slowly but surely find the ads that work out the best for you. What's more? Scale up!
Also, you may want to use a free online tool like SpyFu to target your competitor Adwords, what works for them will somehow work for you too! Learn and experiment with the ads. Spying on how people do the app will greatly improve your skills over time.
Let me know your ROI and conversion. It works very well for me.
If you would like to know more, feel free to hit me up. If you are looking for a free promotion, contact me and submit your project, I can help you promote your campaign free of charge on my blog.