[Drivencrazy]

I see nothing immoral about it. Part of the reason people do FIRST is to get experience in the practices of engineering. One key principle of engineering is iteration. A practice robot allows a team to greatly increase the amount of iterations they can go through. They can practice, find a flaw, find a fix, and implement it at their competition. If you think about it as a tool for learning there can be no thought of it being immoral.

As for the thought of it being unfair to teams without the resources there are many inequalities in FIRST. Would you consider expedited shipping to only the continental US an unfair advantage? No probably not. You would say its part of the challenge and move on. Disparity in resources is very similar. There are many different ways to raise funds on your own and if your team feels a practice bot is a way to increase your teams ability to meet its goals then find a way to make it happen and call it even.