"Match barrel" doesn't mean a thing, if the gun was not prepped by the AMU. Today, it's a marketing term.
There was an interesting gunrag article, years ago, in which eight or ten "1911" barrels were clamped in a fixture that would test the accuracy of the tube, without the influence of how the barrel or bushing fit in a given pistol.
Included were mass-produced G.I. and commercial barrels, boutique "match" barrels, etc. The G.I. barrel, made by High Standard IIRC, was the second or third most accurate, and the "match" barrels weren't any more accurate than most of the mill-run production barrels.
The advantage of the oversized aftermarket barrels is not internal, but external, allowing for the barrel to be fitted individually to the gun. The fitting is what matters. A stock, "$400" pistol might be more accurate than a gun with a poorly-fitted "match" barrel.
But, there's no getting around the fact that an Ed Brown barrel costs $185, and a competent pistolsmith might charge that much again to install it.
If the gun shoots 2" groups at 25 yards, and the stock gun shoots 3" groups at the same distance, you have to decide if one inch is worth $370?
For a used gun, how much do you discount? That assumes that the barrel was properly fitted, and worth any extra cost.