[quote=@Techspert]
<Snipped quote by Multifarious>

Have you taken calculus yet?

<Snipped quote by Intrepid>

The point is that you don't [i]need[/i] to.
[/quote]

You will. It takes a lot more effort to compensate for an entirely new part while keeping the functionality consistent, as opposed to removing a part and putting a new version of the same one in.