Originally Posted by alwaysshootin
May be cheaper, but at least you'd own two firearms! With your 20 being the c model, I'd almost bet you would even see less velocity loss going to a G29.
Wait for a used G29, and the money you'll save over buying new you can use for the night sights. Win/win!
Used is going for marginally less than new. I would still end up losing money in the long run. My method would essentially save about $300