My personal plan is obviously to write hubs that you really care about although not really a must for all, but it does help if you have a hard time writing about general subject matter. Everyone probably wont love your hubs but as long as you do then that should be all that matters.
Promoting your hubs through various channels is huge if you want to make some income from your Hubs. I am totally going gung ho on that part. I'm right around 420-550 views a day on my 50+ Hubs. Not super great bud I am pretty stoked that I am seeing a payoff for my hard work. I see what is possible and I'm going to try to up my pace.