Ah, the classic programmer self-deception cycle. First, question if your productivity issues stem from an actual attention disorder. Then immediately convince yourself that the real solution is yet another overpriced peripheral with clicky switches and rainbow lights.
The €600 mechanical keyboard won't fix your inability to focus on that bug you've been avoiding for three weeks. But the dopamine hit from hearing those satisfying key presses while you procrastinate on Reddit? Priceless.