Monitor Wall mount

so all of a sudden this idea popped in to my mind about building a wall mount for my monitor to free up space on my desk, so i googled it and it got this one website were it took me step-by-step. However, it took me 2 hours to build thing thing for my monitor, the thing is that my dad and I talked about it and he said i need a good hinge to hold up my monitor and it won't free up space on my desk. [gg] And i just put the thing i made aside, all work for nothing XD