Disagree for two reasons. One, kids deserve little but a loving home and a few educational toys. Giving them everything they want is recipe for building a little monster.
Two, for beter or worse, govts subsidize families to the detriment of the single. When the wife and kid arrive, you'll get a ~$500 a month tax break, enough to pay for another bedroom and diapers. The total cost is much less than I'd imagined, especially if you avoid buying all the junk thats expected.