I suppose this is also mine, since I used the term "waste."
I have to be honest.... Your use of that term felt different to me in context. I see a very distinct difference between someone who has thought things through, made some preps. (for example: your GHB and EDC carry items), already has plenty of useful gear that he's decided to pack up on the spot if the brown stuff hits the fan, and has decided that a BOB packed and set aside with quite a few of the same gear purchased as duplicates; just seems like a "waste."
Now compare that with someone who looks at the cost and effort of putting together a BOB, realizes that the items packed inside are meant to be left there indefinitely; and just decides "Oh! That's a waste! Why bother?"
I see distinct differences there. Your's would be the former. That type of outlook as "waste" makes sense. While I respectfully disagree with such an outlook, I both understand and respect it. I know there are individuals out there who'll disagree with my outlook on a BOV. Not in terms of vehicle choice. But in my mid-level outlook on how to equip it. Some see a BOV as just a transport vehicle. Grab the BOB, toss it inside, head on out! Others will actually keep a complete duplicate BOB in their BOV at all times,
and will grab their regular BOB to toss inside should they need to bug out. I don't see the point in that. Especially considering the high cost of putting a BOB together in the first place, even if all the items are cheap junk. (Definitely not recommended!)
Though if it was done. Realistically, in order to cover everything genuinely needed to be covered, just getting the dirt cheapest gear/supplies out there. We're realistically looking at around $350.oo
Now that's an honest and realistic assessment using mostly cheap items. Cheap in every way. Much of it likely to break, let you down, not function reliably or perhaps not function at all if ever needed. So a BOB with decent gear/supplies in it will clearly be well north of $400.oo
It's why a BOB takes time to put together. Not just finding and ordering all the items to cover every BOB sub-category, but slowly using the needed funds as well. I see it as odd to have duplicate BOBs. One at home, one in the BOV at all times. But it's a different outlook that I again don't agree with but can understand and respect. I see it as best to put longer tools into a BOV that won't fit in a BOB. Snow shovel, full-sized shovel, etc. Along with a ton of extra food and water. But that's about it. If you need to use an item not normally found in the vehicle, well; that's the whole point of having put together a BOB. If you need to abandon the vehicle, you're not going to be able to shoulder two BOBs. Might not be room for two on your bike, or deer-cart.
You're in for a real bad day if you get a flat out in the boonies without a spare and cell reception. But in the case of a BOB, I still need to be home/get home to use it.
I do know some who keep their BOB in the back of their vehicle. (If they have a separate BOV, the BOB is kept in the back of their daily commuter. But in the BOV if that's also their daily.) Normally I don't recommend it since cars can be broken into all the time. But I'm fortunate to have a very secure garaged parking spot in my CO-OP, and a secure place to park when at work. So you'll normally find my BOB in the trunk of my car. Whether at work or home, I'm good. If someone is in the same shape I am, no reason not to keep it in the car at all times.
Just wanted to say I read and agreed with the rest of your post. Just quoted those two portions to clarify what I meant in an earlier post and offer up an alternative to keeping a BOB at home. For some, there are other options than just it being at home. And thank you for continuing to keep this thought-provoking discussion civil. I genuinely appreciate it.