I'm sure they want you to throw their paraffin away after each use too, otherwise they would be selling very little of stuff, even though it's super expensive. Not to mention all this additives stuff is BS. Teflon, which is additive in question is simply too big to get in proper place, so only paraffin come to there, and teflon remains on top of chain, where does pretty much nothing. So at least at the moment, I'm happy with plain paraffin, which is extremely cheap, and for now it looks like it's working perfectly. But I agree I'm lucky enough I don't have friends where I would need to brag with price of chain lubricant
Anyway... for me, I cleaned chain when it was new (first gasoline, then degreaser, then water). For every new lubrication, I just drag it through cloth rag, or wash it under running water, if it's muddy, and put it into hot wax. Last time I was doing this, I did it at same time for 3 bikes, and was done in 15min. So not really all that time consuming. If I compare to how much cleaning I had to do with dry lubes I was using before, I would say it's way less time spend maintaining chain now, with one dip into wax (and some links exercise to be running smoothly after wax cools off) every more like 400-450km, then I had before when I needed to clean and lube chain after pretty much every ride.