Everything is relative, one persons Rolls Royce is another's work horse. It all depends on what you want to spend and what your expectations are. if you want to be able to consistently shoot MOA at 50m then the PR900w Predator may not always make the cut. If you enjoy working on or improving the rifle more than shooting it, buy something that can be improved on like the Predator ( there is a fellow member who has modded one into a fairly good target rifle for his daughter) or QB78/79 ( i love them)
Buy the best you can not afford If you want to take part in competition shooting, in my experiance it always ends in me over spending on a hobby as soon as the competitive bug takes over. Saying that, no hobby is ever cheap.
If you really want something that is perfect from the get go, you should wait and check the for sale section till something comes up that is really worthwhile. Read read read as much as you can about the rifles you are interested in, There will be many different reviews/views for every rifle.
My opinion (wich does not really matter) is that i would rather buy something i can easily afford as well as afford shooting it and repairing it when needed. If i bought an expensive rifle and i don't get to shoot it for a month or two i would consider selling it (there are many rifles sold just because the person doesn't get time to shoot). I have cheaper rifles that have not cost me an arm and a leg and a lung, they do not bother me, if i get time to shoot, great. If i don't get time, great. If i have a bad day shooting, i don't get upset with myself or my rifle. If i had an expensive rifle i would start by blaming the "damn expensive rubbish" instead of just accepting that bad days happen, because it should be able to shoot sub polony slice ctc at paces.
I would so much love to own an FX like Matt Dubber shoots with at insane distances or one of the electronic Daystate rifles. But to me they are the Rolls Royce's that are just too far out of my reach. If these rifles start giving problems (that they probably won't) i would not really want to do the repairs myself and would rather have a professional do the work (at a premium obviously) I love being hands on and prefer having something that i understand and know how it works and how to work on it.
Bottom line ( after my ramblings), everything is relative