I don't know if it's twice as much gun, but it's certainly a higher quality piece. One thing about a Smith is it will deinately have a higher resale value. Another point to consider is application. Reliability is a subjective term. A guy who shoots 50 rounds a month will probably find the Taurus to be a reliable, long lasting weapon. The guy that shoots 1,000 rounds a month will most likely not.
I own a Taurus Model 65 in .357 and aside from having to have some warranty work done it has proven to be a solid performer. Then again, I've only had it for two years and have put maybe 1,000 rounds through it.
Another point to consider is ammo. Are you going to shoot standard factory ammo, or will you be loading some high potency hunting loads? Personally I don't have the confidence to load my Taurus to the same level as I would a Smith. Then again, I wouldn't load a Smith to the same level as a Blackhawk, but that's just me. The Smith might be fine.
Another thing to consider is budget. Some people just don't have the money, so that means buying used or buying a lesser brand. Some people aren't comfortable buying anything used.
So I guess it all boils down to the wants, needs, expectations,and resources of the buyer, and only the buyer can address that.

GH1