Honestly why wait? Just play regular like most people. I don’t know a single person in my friends list that will even touch ladder or has any interest at all. I think most people will skip the first ladder season. At this time there are no exclusive content scheduled for “ladder” and if you start a week or two later, you will fall behind everyone else. Not to mention, you will probably have less players playing “first ladder” which may make trading harder.
Even if they offer extra stash space for ladder “participation”, I would simply level up a character to the required level and go back to non-ladder so I can play in the better economy.
There is no benefit currently to play ladder. None. We get a fresh start on the 23rd, we get a new economy, no bots, no hacks etc.