If your DC's main concern is the college he is going to get into I would not worry that much. My husband got in MIT and he graduated from a public, not so great, rural high school. He loves science and was an intel science award winner as well as valedictorian. He was also an athlete and had very high SAT scores but has never had an individual IQ test administered (just the group tests they do for gifted programs). His parents were not economically advantaged so the extra stuff was out of the question but he was passionate about engineering and his achievements and work ethic showed it. That will be what schools like MIT are looking for.
