For the majority of pool players, whether you need a break cue is more of a matter of do you want one? Being able to get a great spread with the greatest chances of pocketing a ball will require some separate practice time. This means racking and re-racking the balls as you experiment around with various stances, body positions, and follow-through.
This development time can be spent with any house cue until you have started to gain some capabilities and control. That is when you should get a break stick. Until you are willing to setup and break about 200-300 racks to work on your breaks, there is no need to spend the money.
When/if you decide a break cue is necessary, try out a number of sticks used by other individuals. Selecting a break cue is highly dependent on personal preferences. The best way to see what you like before you commit the bucks is to see which of the many types are comfortable for you. There are several manufacturers that have a combination break and jump cue. If you get a chance, try these out to see if these can be beneficial.
Generally, these are available as production sticks, which helps keep their costs within reason. (Rarely is a break stick custom made.) It is only a matter of trying several out until you find one you like. You will also need a cue case that can hold your regular playing cue and the new break stick (and an extra shaft or two).