sounds like an inside job, or at least someone with some inside information.
Without going into the details of the case, I'd say that is unlikely. Moreover, the burglars were apprehended a few weeks later with some of the loot. Too bad they didn't put their skills to something more productive.
Regarding the stuff that can be replaced with money, I have to be honest and say I'm not obsessed with protecting those items.
Insurance! We should have insurance to supplement home security. That's how you can replace the stuff.
While your little dog may be the best alarm system in the world and you may be the guard dog from hell, that only takes care of opportunistic robbers or robber who rely on violence to get in and subdue the residents (i.e., the most feared home invasion scenario). What about robbers who are a bit smarter? Robbers who wait until you're gone before going in? Robbers who prepare ahead of time?
It's be easier to buy a large safe that is designed to keep things secure, as an added bonus you could use it to protect against fire which is probably a bigger risk than burglary.
What sort of safe is good enough? I looked into gun safes a while ago. And it appears that anything less than a few thousand dollars (10 or 12 ga steel) can be broken into by a fire axe. You need something in the order of 7 ga steel, weighing a ton, and costing thousands of dollars. Now this is when you start watching Youtube videos on techniques for breaking safes. Then you start feeling queasy, because it seems that with enough time and equipment, all safes can be compromised. So that suggests some sort of alarm system that can alert the authorities. This way you take time away from the robbers. Maybe they won't have enough time to crack your safe.
As you guys can tell, I'm not an expert in home security. I have just lived in areas that required a bit more precaution against burglars. But I'm hoping my half-informed contribution will draw the more knowledgeable people to participate.