Can't say I would totally agree with your statement on a .22 LR Rimfire match rifle.  Totally agree with you on a centerfire match rifle.
I just sold a couple of days ago a 2500x (full custom) to a fellow who put a ad on Rimfire Accuracy looking for a 2500x to shoot ARA 50 yd matches.  This rifle had 2500 rds through it, and was just beginning to really shoot tight groups.  It really didn't start grouping until around 1500 rds.  It also took a lot of testing with different lots of Lapua ammo (at a very expensive cost).  A lot of people feel these type rifles will go 15,000 rds before needing a new barrel. Some think further than that.  Some guys claim a 100,000 rds. I don't buy that, but 15,000 rds sounds reasonable.
Attached pictures of the rifle, and a 50 yd (5) shot group. These builds are crazy expensive and one never knows what you actually have until a good break-in has been done.
		
		
	 
So, I should qualify my answer.
 I have yet to buy a factory rifle or used rifle that I did not find lacking. Often in multiple areas.
 Now. One could say 'Well, stupid. You should have bought a custom rifle to begin with.'
 And there is truth in that.
 In my particular case, I am out to learn, and so I have learned A LOT.
 Perhaps, more than anything, I've learned to lower my expectations if I don't want to be disappointed.
 If you're primarily interested in shooting alone, I say saving up and buying a costly custom will ultimately be cheaper in both time and $$$.
 Just don't expect to shoot in the top percentage just because you spent a lot of money. You have to know how to shoot, too.
 That takes time, $$$, experience and practice.
 Add in diagnosing and correcting firearms issues and you better have a lot of patience as well. You'll need it.
 Perhaps that round count figure is synonymous with experience?