Good idea to buy training mask?

I got my appointment today to USAFA. I'm from CT so very low elevation wise. I'm almost near sea-level. Would it be in my best interest to buy a training mask for the elevation difference? I know USAFA is high in elevation.

Would this be suitable?

http://www.amazon.com/Elevation-2-0...4&sr=8-1&keywords=high+altitude+training+mask

Thank you