That is a really hard choice to make.
I spent over 10 years on shots and it it can be just as annoying and difficult as using the pump. I lucked out that the way my schedule was setup I was using regular than humalog insulin and than I was using NPH as my long term insulin. I was only doing two shots a day, usually 6 AM and 6 PM or there abouts and able to survive that. Now I know with lantus and such that it is almost the same thing as being on a pump with using humalog to counter your meals and such.
It is really up to you to weigh out the odds and see how you really feel. I mean I never had problems with needles so it did not affect me if I had to take extra shots and so on. But that means you would still have to be carrying your insulin and tester with you where you go. Plus I am guessing that for lunch time shots you would have to go to the nurses office to do that. It is a hard choice and you need to think about all of the things that you need to do when you are on shots verses what you have to do with your pump, especially if you have the periodic pump problem.