While I really stopped watching the Price Is Right since Bob Barker retired and so it won't impact me (nothing for me to boycott), I'll say that this seems like a poor decision by the show's team. Rarely is it advisable to get involved in contentious issues and causes.
As for point about Planned Parenthood doing more than abortion, this is true. But in that case, why not just give money to agencies that do STD testing and treatment, pap smears, without the abortion piece