Hi Bloom,
I used to be a Tupperware lady & yes as stated above they do have sales on during the year. In fact there tends to be a monthly booklet that you can get.

As for getting stuff off eBay I tend to stay away from it as you often are getting second hand stuff. If you look at the website it should have a phone number you can ring that will put you in touch with your local tupperware lady.

You don't have to have a party to buy tupperware, but you often get more for your money (or get something extra) if you do host a party.