What features would you like the app to offer?
If lets say I wanted a laptop, there would be a category for electronics-laptops, and there will be basic info on buying a laptop and also links to amazon (or something else) with referral links.
The main money issue is not 100K to update DDF, DDMS... it's to pay a new worker to keep everything updated.
Look at all those DDMS posts, half dans followers are just looking for someone to point at something.
Integrate links to flights, not just sales, but a deep description on how to book it thru his links, without a travel agent (obviously he only shows how to book thru his links and not in general, to keep people coming back).