[sithadmin]

The usual PowerShell guru's response to your complaint is 'This is what PowerShell ISE is for'.

Personally I don't think this is elegant, but that's what I usually encounter in the wild.

[WorldMaker]

For what it's worth, Windows 10 enhances the basic command host to support some more things such as nicer tab completion directly out of the box (for both traditional cmd.exe and PowerShell) without having to switch to ISE.