You get what you pay for. Most of the T/C barrels I have and have had (over 20) were rough as a cob inside, the lands are as thick as the grooves (good for bore-riding cast bullets, not for much else), chamber casts often showed an off-center chamber, the crowns were usually fair to poor under a magnifying glass. Most shot decently, and 1-2 moa was not hard to get. Cleaning was another matter....
The five Bullberry tubes I've owned are all smooth inside, the lands are much narrower than the grooves for lower chamber pressures, they are easy to clean, the chambers are prefectly centered, the crowns are perfect, and they shoot wonderfully. 0.5 to 1 moa accuracy was not tough to get in appropriate chamberings. The most accurate were a .25 Bullberry and a .300 Savage, with 20-shot aggregates in the .5s firing their best loads. Even the .45LC barrel gets 2 moa consistently.
So, it depends on what you want, and what you are willing to pay. Custom shop barrels are chambered in a drill press, so the chambers can be off center. Barrel blanks are cheap, but they work well. If you can be satisfied with 1+ moa accuracy and more difficult cleaning, the cost difference may be worth it. I enjoy all my Contender barrels, no matter who made them.