If you dont have a locker You don't know what your missing out on. Once you get one and use it you'll wonder why it took so long to get it in.
That is of course your never going to use it and just want it for bragging rights, then I'd spend my money elsewhere
Plus think of it as doing your bit for the environment and track preservation, as they allow you to crawl up big rocky rutted hills without bouncing and spinning your way up, and making it harder for the rest