Mike,
I really like the Steyr, but as I am not a serious competition contender, I cannot justify a $2,000 pistol, especially when comparing it to the $450 cost of the PP20. The LP50, as nice a pistol as it is, it is very difficult to add a moderator and the semi-auto feed does not play nice to increased power changes. I am certain your LP50 will continue to hold its value as long as you just leave it alone. The PP20 interests me because the trigger appears better than previous models and it has functioning open sights. It appears that the barrel and shroud is the same as the PP700SA, which means that I can attach a laser to the side of the shroud and easily mount a moderator. I am not certain, but it looks like it also has an 11 mm rail, so I should be able to mount a red dot reflex sight. Like you, I find these the best sight for PCP pistols. The downside of the PP20 is it is Chinese and will suffer their QC problems. I think it safe to assume there will be those issues, but like with my two PP700SA's, they are resolvable. A bigger problem is the air cylinder. Removing the cylinder to charge it is truly stupid, inconvenient and trouble prone. This is especially true when they already have a similar tube for the PP700 that uses a trouble-free probe.