If you're not committed to finishing the battle pass
Just do yourself a favor and don't buy anything. On the other hand, if you're going to spend 110 hours/560 matches finishing it, then so be it. I'm just telling you, if you're doing this currently and don't feel like you have the enough time to finish it, just don't buy it because you won't get your money worths. To all the people going ahead and buying the pass form the very start, good luck!
My recommendation is to anyone considering buying anything related to the pass, work as hard as you can and buy it on the last few hours of the first archive, you'll see how far you realistically got to. Have fun in the Fog!