Do you have other children?
How will they feel if they see their brother getting tons of praise for being "smart"?
What if one of your future kids is in special ed?
My oldest daughter was always in the gifted program and won every award, scholarship and job offered. My youngest was in special ed and could not even be mainstreamed (autism). He struggled just to get a high school diploma. We learned early on to praise our kids for being helpful, kind, thoughtful, etc. To much emphasis on "smarts" is not always a good thing.