Pffft... $30/month? Go for it.

Eat fast food one less time a month -- I mean with your wife, your son, and yourself that must come to $15 -
$20+ at any fast food restaurant. With 2 newly reactivated accounts you should be at home more often
anyway.

Remember, if you don't want to painfully re-level new teams Blizzard just upped the RaF bonuses to level 80
(81) which makes things much more trivial than before. You'll obviously have to ditch your current teams
and/or pay for transfer fees to bring existing members over if you decide to go this route.