In case it was missed, here was my suggestion:
Have BOTH live and lobby arena matches - live is the current system (can jump on and start a game any time and wait for someone to join), lobby like the experiment - set times when players are matched up.
Here's how to make it worth while: Make the live matches worth LESS, and the lobby matches worth MORE. That's taking into account that live matches may be more uneven, while lobby matches should usually be better matched - you are risking more.
Have BOTH live and lobby arena matches - live is the current system (can jump on and start a game any time and wait for someone to join), lobby like the experiment - set times when players are matched up.
Here's how to make it worth while: Make the live matches worth LESS, and the lobby matches worth MORE. That's taking into account that live matches may be more uneven, while lobby matches should usually be better matched - you are risking more.