Difference between a UK startup and a US startup.
A Uk startup tries to start small build revenue with business model sell at a high price.
A US startup builds small demo gets funding, hires staff build's it bigger sell's at a high price or then develops business model.
Google adwords is not user friendly and it is badly designed you shouldn't have to read a huge manual or read up on it. It should ask you how to configure it, not configure it yourself with its hidden menus. Plus when you put money into you account in adwords it doesn't acknowledges that the money is deposited until a few hours later so at first you think it didn't work. Which goes back to the bad design.
With 90 percent of the search market within the UK you have to use google. If google can't market your site properly on its display ad network with 50 quid there is no point giving it a couple of grand. You might as well piss the money up the wall.
I actual care about travelling for I went travelling around the world in 2008 to 2009 after finishing my computer science degree.