I know this is a bulk store, so with having myself, and my family of seven would this be a good place to buy groceries?

Oh yeah, the store has been there for 30 years and we get most everything there and it is just the two of us

Definitely! I do almost all of my shopping at Costco and Sam's!

Yes

Well I just moved to kansas side of kansas city. And I used to shop at the Sam's Club on North Oak Traffic way

You should go and look at the prices and compare them with where you usually shop and see if the savings is greater than the membership cost (also remember that most locations also have discounted gas so you may factor that in as well).