I agree entirely. I never pitch liquid yeast without making a starter. I highly recommend my method...cheap, easy and effective.
Take about 7 ounces of malt extract and boil it in a LITER of water for 15 minutes. Cool it down. Then take an empty gallon spring water jug (milk jug style) and, using a butterfly drill bit, drill a hole in the cap to fit a small stopper. Sanitize it with StarSan, etc., and add the cooled wort and liquid yeast. Put the stopper and an airlock in the cap, and stir/shake it gently. Allow at least 12 hours, preferably 18+, for proper propagation.