1- You will need several hundred dollars a month to pay for product, books, tapes, meetings, rallies, gas. Ask him where that will come from, and what he/you will be sacrificing to pay for that. He may say that this phase won't last long, that you will soon be making enough money to cover expenses. Ask him to be specific: how many recruits do you need to break even, and how are you going to get those people?
2- The products are very expensive, and you will be buying far more product than you can use. If you don't buy products like this now, why are you going to be excited about buying them in the future, and why will you be excited about overbuying expensive products? If you can't get excited about the products, how successful will you be in convincing others to buy the products?
--> After the 3 week cooling off period, Instead of signing up as an IBO, ask your husband to just buy a bunch of product and use it for a month. See if his excitement for the product matches his excitement for the business "opportunity." That's a fair request. The business will still be there for him at the end of the month.
3- If you do become an IBO, your efforts will be in recruiting. Your earliest recruits will be people that you know. How will you feel about trying to sign up family/friends/neighbors by omitting key information that they need to make an informed decision, such as all the recurring monthly expenses (tools, web site, voicemail, meetings, excess product inventory, etc.)? This is called a lie of omission, and is essential to recruit people. Can you do this to people you know?
4- Your presenter mentioned he would not miss a meeting even if he was very sick with the flu. Ask yourself, why would you need to go to every meeting, even if you have no prospects there? Answer: there is no good reason, other than because they say that's what successful people do.
5- Tell your husband that if you don't join him as an IBO, Ambots have been known to try to get him to choose between you and Amway. Get him to commit to you that when this happens, he will leave the business. Not in a year. Not in a month. Now.
6- You mentioned that the Ambots you met were smart, educated people, too smart to fall for a bad opportunity. Therefore, it must be a good one. This is a fallacy of logic. This is what made Bernie Madoff able to convince lots of other smart people to give him $50 billion.
Don't EVER stop thinking for yourself or trusting your gut instincts.