Razor Naga vs Mechanical Keyboard

This might be a silly question to the more tech savvy individual but is it better to play Wow on a Mechanical keyboard vs using the side buttons on my naga to do my abilities?

I have the K95 keyboard from Corsair.

Neither is better, it’s honestly personal preference. I don’t even use a mechanical keyboard personally.

Why not both?

I always bind mobility skills and interrupts onto my thumb buttons

Hell, my thumb buttons are my main buttons, my 1-5 are cooldowns and stuff.

It’s more a question of comfort than anything else. My personal preference is to keep my mouse clear of keybinds and rebind most of my keys on the keyboard, but I could see value for some people in bindings for the mouse.