If you want to get more bitcoin private, I don't think that buying bitcoin is the best approach. The developers decided to give bitcoin private to bitcoin holders and zclassic holders as well, and they will both get it at a 1:1 ratio. So since bitcoin is way more expensive than zclassic, I think you best approach would be to buy it, instead of bitcoin. Not saying it's a better investment than bitcoin, but if you are just thinking about the fork, then it's probably a better solution. Of course that a lot of users already did that, so I expect the price of ZCL to drop significantly after the fork, so be careful.