Though its low on price, which mainly attracts Customers.
The AA batteries doesn't last long, It may require Duracell.
The rechargeable batteries take more time to Charge rather than usage.
And what if the most of the time is spent on charging those Alkaline batteries.
If 4 batteries are purchased then it would not be a problem.
A set of batteries(2 Pcs) of Sony costs 650/-
Where as lithium ion Batteries last longer & require less charge time.