How to play mainly electronic songs live? Well you have to make a decision. Play along with a beat/tape/loop or play everything live. The former option is definitely the most convenient. It will sound exactly like the record and you have a lot of leeway when it comes to choosing (and paying) bandmembers. Don’t have a drummer? No problem, put the drums on the backing track. Your keyboard doesn’t have the same patches as your VSTi? No problem, put the entire keyboardtrack on ‘tape’.
But I tend to gravitate towards playing everything live. It is the more interesting option. It won’t sound exactly like the recording (which is neither good nor bad), and you have to keep it simple. Less is more, you know.
And a good song will stay a good song, no matter the arrangement. Right?