Have you seen Ruf's levels of giftedness? (Google it if you haven't seen it.) It is a surprisingly accurate guide to estimate how gifted a child is. Kind of interesting, if nothing else.
Is your son eligible for free testing through the local school system? If so, then I would definitely pursue it. No reason not to if it is free.
If no free testing available, then refer to Ruf's guide and figure out how desperate is the need for private testing? I would say if level 3 or higher than you definitely want to test sooner rather than later if you can afford it.
Mary
