Question Built-in Power Monitors VS Power Bricks ( adapter) Monitors??

[ApocalypseNow]

hi
i want to buy a monitor but i don't know what is the difference between a monitor which has a built-in power and a monitor which has a power bricks ( adapter) ?
some ppl have a problem with cable management
some ppl have a problem with losing adapter
but i have a problem with heat and damage because i think a built-in power makes heat that effects on monitor life time.
am i right?

 

[USAFRet]

I have some of both.

Cable management? Well, there's a cable either way.
losing adapter? Not for a regular desk monitor.
Heat? Not an issue.