I might step on some toes here, but...here I go anyways....
I make my living in the public sector dealing with the criminal element. I'm not a person known to be sympathetic to them.
Having said that, the old "carry a cheap gun in case the cops confiscate it" yarn is a pet peeve of mine.
First of all, I've been taught by Troopers in classes that in a textbook perfect clean shootnin my state, you're very unlikely to get out of it for less than six figures. They actually said in the area of $150K. That Lethal Force class was...a good ten years ago.
By the time you get through that, your finest Wilson Combat, ED Brown, Staccato, Manhurin, Korth revolver or whatever is a drop in the bucket.
Additionally, if cops want said gun as evidence, you have just taken a human life or horrifically wounded a person. That does not typically come to good people easily. Even the most awful people often have someone who loves them that didn't do a darn thing to harm us. Granted, this is not logic and reason, but my personal sensibilities. I think it to fret about your gun in such an instance is reflective of a darn cold person or someone who really has not thought this matter all the way through. I've seen published articles where the Author was concerned about his walls, carpet, and artwork if he shot someone with too much of a gun. I find that sequence of priority as offensive, but again...I acknowledge that's my problem to digest and nobody else's.
But...having said that...If that day ever comes, you can bet any DA with half a brain will be combing the internet and gun forums researching the heck outta you. I wouldn't want them seeing the post where I was wringing my hands worrying about my precious carry gun more than perhaps de-escalating a conflict and not killing the family member of their client.
In summary, I believe in carrying whatever will best help you to survive a violent conflict, regardless of the price tag. I find the idea of carrying a cheap gun for police to confiscate as ill considered at best.
Each of us walks a different path through life. I'm sure many will have a different view. That's just the view from my own path.