Robbers like to steal- anything valuable they can get ahold of that's easy to sell.
Robbers target- places that are easy to get into.
That's honestly the long & short of it, really. In the department store I work at, shoes get heavily targeted for theft- they're fairly close to the door, easy to carry, & there's a robust collector's market for the right brands (Nike gets targeted pretty heavily.) You'd think they'd go for the more expensive brand name handbags- but those are chained to the displays, you'd need to come in with clippers to get at most of them. It can be done, but it's hard to walk around a store with clippers and not look suspicious, so it doesn't come up.
Media gets targeted becuase most pawn shops will take it. Not every shop takes every thing, though- which would certainly explain the desperation to see exactly what you had. You honestly seem to have the right idea going- don't broadcast too heavily what you own, don't let just anyone in to your place. I'd just keep the doors locked (maybe make sure you've got a good deadbolt for when you're inside too) & have a talk with the other residents of your place about being more cautious of who's allowed in and what they're allowed to see. You're certainly doing better than a friend I used to have who was very paranoid about this kind of thing, but always came to really weird conclusions. For example: they insisted on not having ground floor apartments becuase that was how their friend got robbed- ignoring that said friend was robbed by a causal acquaintance who'd been invited over before, & knew said friend's work schedule. Doesn't matter where in the building your apartment is if you let yourself get cased!
