I thought about a safe until I watched a video showing how very easy it is to break into one. Two guys were in in five minutes. I could probably come up with $1,000 for a safe, but I'm betting a $1,000 safe wouldn't keep out a couple of guys intent on getting into it for very long.
A freind of mine has owned firearms for more than 40 years and has never had a safe. He sees it as leaving everything in one spot will make it easier for the scum to find it. He has his firearms littered throughout the house instead.