There are other threads that show how easy it is to get into an RSC, or gun safe. Seriously, just a few minutes. If it is all you can afford, then it is all you can afford, and it might keep nosy kids out.
But if you can afford an AI with a S&B on it you can probably afford a real safe and more than you think you can afford.
And keep in mind most safes focus on the door, but a thief can attack the sides. Most gun safes are only 12ga steel. Not only can a common and cheap angle grinder, or even circular saw with a metal cutting blade, rip through it in nothing flat, but even a fire axe will have its way with it in short order.
UL has been testing safes for years. Here are some ratings and what insurance companies might insure the contents for:
http://www.securitysafeusa.com/company/faq.html
You can buy an AmSec TL30x6 (all sides tested for attack) safe for about $6,700. It weighs about 4,600 pounds. It is a real safe, and it is only the starting point for serious protection.
I'm almost certain your home insurance doesn't cover your guns and jewelry over a very small amount. Are you paying for a rider for your gear? Have you added up the cost of your gear? There are many guys I've seen posting about their collection that suggests it's worth over $100,000. But you can't afford a real safe? And you don't want to pay for extra insurance? False economy guys.
I know a couple guys above were getting blasted because some people figure they can't afford more than they can. It think if you read carefully one of the guys being criticized acknowledged that and suggested that if money is a concern just get a StackOn or Homak steel cabinet for a couple hundred dollars. You're not getting much less protection than the RSC gun safes and you're saving a whole lot of money.
Even the fancy gun safes that run in the $5,000+ range offer craptacular protection for the money and don't even have the serious UL ratings discussed above. Of course no one wants to feel like a fucktard for having spent that kind of money on a safe that offers little protection so they're going to get pissed. But that's life -- the hard lessons are usually hard. Get over it and get real about how much protection a safe does or does not offer.
And yes, a real pro will get in eventually. It's said that a safe buys you time. Hopefully you've got an alarm system and a responsive PD. The UL ratings above are tested with pros trying to get in -- with the right tools. A good safe might just keep out the random neighbourhood punk or crackhead with the wrong tools -- no matter how much time he has. But even an idiot with the wrong tools can generally get into a RSC gun safe. This forum, and others throughout the web, have stories and pictures of these things and how they were broken into. Just search.
Sorry about being a downer and pouring cold water on everyone's safe parade, but that's the way it is.