If cost is a concern, then yes.

Aluminum will not fail catastrophically. It will be a slow process that you will see coming. When it starts to crack - and you will be able to tell - then it is probably time to move on. But for now, there is nothing from a safety perspective to prevent you from continuing to ride it.

But if you have the money, go to your LBS and get a crash replacement. I'd guess the Caad 10 frameset will cost you $700-$800.