We have used bulk Alkaline batteries for many years now. They are fairly inexpensive and seem to work well in my digital cameras which are the largest user of AA batteries used by us daily. We take photographs for a living so we use our digital cameras every day and go through about a battery a day each month. Alkaline AA batteries cost us about $10 for 24 (More or less depending on Sales, where we buy, etc) this is about 42 cents each or about $15 a month.
Lithium vs Alkaline AA Battery Test