Sam's has some of the best every day prices on meat & the quality is very good. They also have the lowest prices around for sheet cakes (up to 1/2 the price of Pick 'n Save & Sentry). The quality of the cakes is excellent decoration & flavor wise & they can also put your picture on a cake.
I have never been able to find lower prices on photo developing & photo cards. They also offer many name brand clothing items at discount prices.
Not everything is a deal. Some items are better to get at other stores either because of the quantity it is sold in or the ability to use coupons elsewhere. Overall, if you know your prices it is easy to save a lot of money at Sam's.