At least for us, every bug that makes it into a release that gets installed on a client computer costs us 100x - 1000x as much as a bug that gets caught earlier.
Sometimes getting the new capability around that bug to market faster is worth the tradeoff, because the revenue or market position from the capability with that bug is way more important to the business than the 1000x cost of the fix after distribution.
As long as you have some mechanism to catch the issues before it hits customers. Too many software companies are OK shoveling crap on customers because it's easy to fix it in the field. Yes, it's easy to fix in the field, after you've inconvenienced and wasted the time of thousands of customers.
