I used to be brand loyal, and there are some pros and cons. First of all, most companies equipment tends to ROLL very similar. For instance Brunswick tends to be early and smooth, Storm tends to be long and strong. However, being that you want several different looks in your bag, staying within a brand can limit your choices. At the same time, if one brand fits your style better, you will have a lot better idea what you're getting from each new ball you buy, it will be different but still feel familiar. Being in the pro shop industry for so long, I feel that I have a very good grasp of equipment in general and have only just recently started comparing balls individually regardless of what company makes them. However, most companies swing back and forth. Hammer will have some really good pieces out while Brunswick puts out a couple duds, and then it will swing the other way. I usually use one brand at a time, but with each successive purchase may choose balls from a different brand. I currently have a Motiv Sigma Tour, a Deep Purple Taboo, a yellow pearl Misfit and a Brutal Nightmare, but really only throw the DV8s, the others I keep for certain looks or very specific conditions or shot shapes. Might get on a Storm kick next or maybe go back to Hammer or Motiv. Ultimately though, I don't especially support unending brand loyalty, but I do believe it's more beneficial than hopping around.