Only people that talk 24/7 need a second battery. I'm surprised you are not complaining that apple only has 1 mouse button. Time to move on.
I want a removable battery so I don't have to pay a $100-$300 charge when my battery completely dies after a couple of years. I'm still using a Galaxy S3, and am about to switch to my 3rd battery.
No, I don't upgrade my smartphone like a lemming every year...it's a phone...I don't need a faster processor, more memory, fingerprint scanner, rectal thermometer or any of the other widgets offered on new phones. I think it is insane that society now considers a $500-$1000 computing device "throwaway".
That being said, I will likely be upgrading in the next year or two for a larger screen & better camera. I will only look at phones with a replaceable battery.