>If the price is the same, I'd opt for the brass cases...

Al T gave my response. You can even resell the brass cases or use them for trade-in with some companies as credit to buy more ammunition.
I would have no "fear" of using aluminum cases, particularly with such a low press round as 148gn WC.
I have tried reloading aluminum and steel cases before. Reloading was not an issue, but both materials shot larger groups and the groups were centered different from brass case ammunition. I may have imagined it, but I could feel my gun actually pause with the steel cases as though it took more effect to extract them.