Great points! I think the key phrase would be "fitness for purpose". I also definitely agree it's a personal choice.
My priority was based on an overall cost vs benefit equation - which is different depending on needs and personal preference. I have VERY simple - and low amperage - needs. I simply wanted guaranteed amps (accomplished by rooftop solar) from batteries that are ALWAYS charged. AND... I'm a cheapskate
Lots of guides on this subject say to first define your energy needs (amp hours). Then I would say next to define your tolerance for maintenance. Based on these criteria, make an educated purchase within your budget.