While I certainly appreciate the input of those in the safe business, and have avidly read their information over the years, I must say a couple of things.
1) Keep in mind the value of what you are protecting. I have one RSC that is completely full of C&R rifles for example. If you had a good auction day, I guess you might get $2,000 out of the lot. I have them, as well as all my firearms, insured. It makes no sense to me to purchase a $4,000 safe for this purpose.
2) If you have money, and use it to purchase high dollar firearms, such as custom/engraved rifle and shotguns, by all means go for the high dollar safes. Indeed, if you are in that market, get a custom built vault room.
3)Someone asked about the phrase "complete confidence". That is subjective. I have complete confidence in my lowly, leper like, RSC's in this fashion: I know that a determined person, with some minimal set of tools will probably be able to break into them. The average teenager/drunk/druggie looking for a quick snatch and grab probably will not. I am not trying to defeat the well equipped, determined safe cracker. That is what insurance is for. My safes are to defeat the 'amatuer' criminal. I figure this is the guy that is much more likely to break into my house than the guy who is prepared to peel an RSC.
4.) Think about where the poster is coming from. While I respect the two safe dealers who have posted on this thread, and believe every single thing they have posted, I think that they naturally lean to the high end products. Hey, if I sold cars, and I sold Beemers, and MB's, I might lean to those products as well, perhaps forgetting that for a lot of us the choice is not between a MB or BMW, but between and KIA and a Hyundai. Since I am in the later group, there is just absolutely no way that I can afford that 635i, so don't tell me that I might as well walk if I can't afford it.