I take it because I want to make sure I know what I'm doing. Yes, A+ is for life, but I can assure you that I will not fall behind the curve simply because I already have my A+.
doesn't matter which one, new or old. They are all based on the requirement that you know what you are doing. The only difference is how old the information is in the Old test versus the new one. If I were you, I would take the old one, and if you pass, then next year take the new one. Do it every two years to keep up to speed with the industry expectation and don't loose track of the trends and most importantly, never forget how to use old technology.