Fact: A really good title for a novel will catch an agent’s attention
And once that attention is caught, then the chances of the entire query letter being read is very high. The benefits of this is obvious. If an agent reads the entire email, the more likely it is that the agent will request sample pages.
I know I’ve requested pages simply because a title was so original and cool, I had to see if the writing stood up to the wonderful title premise.
Now if the writing doesn’t engage, a good title won’t keep the agent from rejecting the pages but as you all know, writers have to get a foot in the door first to even get the chance to wow agents with their craft. So anything that increases your chances for getting sample pages read is valuable.
Spend some time on this component of your novel. Do searches on Amazon and other venues to see how common it is, etc. Don’t just include a “throw-away” title. It certainly won’t help and it might actually harm.