It's easy to dimiss the importance of focus points, until you have a camera with an enhanced focusing system. I started with the original digital rebel, 40D, 5D, 5DII and I always douns ways to make it work. But it was work and the keeper rate was not particularly high.
Last spring I bought a used 1DIII and it was a revelation, not only were there more points to chose from, but the outer point to were more reliable. Recently I picked up a IDx and it's a focusing miracle. The 61 points means I can select with great precision or I can unleash some pretty amazing multi point options
So if you get the chance to upgrade to a body with advanced focusing options, do it.