Trademark registration is a very valuable tool, especially considering the cost. Trademark registration provides both preventive and contingent insurance* — it reduces the likelihood of a trademark dispute while at the same time providing the owner with a stronger position in the event of a trademark dispute. Now that is value. It protects the owner on the front end and the back end.
There is nothing you can do for your brand that provides more protection – and insurance – as obtaining a trademark registration from the USPTO.