If you order within the first week or two, you're pretty much guaranteed to get it with the slip. They haven't advertised it with the slip because EOne releases are 50/50 when it comes to slipcovers... sometimes they release one, sometimes they don't. You usually don't find out until right before or during release.
Going from your experience and Just ordered it... really Hope it comes like you with this ''Stunning Slip'' if not it's going back !
Nice CS though it was missing 0.01$ to equal 25.00$ to qualify for free shipping and agent waived the shipping fee...
Taking a chance on this and The Walk 3D seeing that in store they do come with slips