I've owned a few Taurus revolvers, including the aforementioned 617. Each had issues ranging from minor to serious; The 617 being the serious problem, experiencing a complete lock up after a couple cylinders. That is the only one of the lot I ever sent back because it was my first. After the ordeal with Taurus CS I didn't waste my time sending any of the others back. The revolver was there for over 3 months and it was eventually returned, only to lock back up after a few cylinders.
The 617 was a birthday gift from my then fiancé and I couldn't sell it. I ended up spending a couple hundred dollars and some change (around what the ex paid for it) to have it repaired by a local gunsmith. After it was repaired and had a trigger job it was a decent gun. However, the day after I broke up with the ex I sold it along with the other Tauri. That was many years ago and I never looked back. I'll never own another Taurus product again.
As for the issue of cost, for what you get a Taurus isn't that inexpensive at all. Rough finishes, poorly fitted cylinders and internals, just an over all lack of quality. There are S&W and Ruger handguns that are around the same price or slightly more expensive than a lot of the Taurus offerings. For instance, a S&W Airweight can be had for $361 shipped from Buds guns. That's very competitively priced and far better than anything Taurus offers in the same category.