I can say the one we have has been getting beat around for over 10 years.
I did have to replace the hammer because I was holding the trigger and slapping it like you see in some of the old movies. The new one is made of a better steel and appears to be what they use on all the newer guns. I wasn't charged for the hammer and it was easy to replace.
I haven't seen the ad. How cheap is it? My daughter got me one a few years ago and it's not my favorite 22 handgun. If they're cheap enough, I'll get another for the fun of it.
Normally, the most expensive one is right around $200, cheapest around $170.