All the above reasons, and MORE* coming (*meter/s in your 'posession')
and do you really need another phone or the latest shiny
adware magnet one? Meters are more fun, survive drops better
and no Facebook BS My two probes worth: different meters sport different features, Min Max and Low-Z and Auto Low-Z I find very useful in many iffy situations,
basic logging is nice too, to keep unattended tabs on a tedious or intermittent head banger,

I find owning a 'few' meters (nose growing..

) with ALL the various functions scattered amongst them,
is a cheaper and better bet, than having one or two expensive 'all in ones', sometimes with too much smarts on board

and not really the 'jack of all trades' you think you have
and here's an important FYI for the pocket > some cheaper decent meters excel at being sacrificial,
i.e. they just won't spark out or die like expensive ones tend to sometimes do
I think three multimeters plus a clamp meter is a good minimum to have, and cut off point (good luck with that..)
Upon getting there, the meters photographed with the owner in a mug shot holding up today's newspaper,
then emailed to EEVblog Admin as a requirement to join the forum
The correct number of multi-meters to own is always n+1, where n is the number you currently own...
I would like to challenge that. My current status is at n+2.
In addition to my current holding, I would like to add a bench meter with 4 wire measurement and something like the Uni-T 210E for a DC current clamp meter. Why? ... Because I don't have them. 
I keep meaning to get one every few months when I remember or see posts here about it, for those iffy AC and DC mA measurements
(and because I don't have one, therefore I plead guilty Your Honour, and throw myself at the mercy of the EEVblog Court..

)
and always the local oz sellers are either out of stock
or want $700 for one

so when queeried about that, they reply it's currently out of stock but keeps the Ebay listing going =

+

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I'm off to check out the other post too >
Re: Why do I need more than 1 oscilloscope?