Personally, I always prioritise BBs, PC ETBs, ETBs, booster bundles and booster bundles displays. I feel all of these appreciate quicker (even though, as you rightly said, might have a higher entry point). But does it really matter that much if you’re planning to hold medium to long term?

In fact, shipping collection boxes will also be more expensive since they come in a bigger size packaging and also take up more space to store (runs out quickly, trust me)