SAHM have repetitive tasks but so have most of the people who go to work. So I feel it is more a question of reward. If you go to work you have a paycheck that translate in a financial reward. At work, sometimes you might have promotion or a good meeting with a client.
SAHM don't get all this. But if someone would give a paycheck to SAHM... oh well would they be enough money to pay all the 1000 tasks of a day!
For now I would just settled for being appreciated by my family but it would be nice the rest of society took a good look of all these unpaid moms that contribute so much without asking for much.