I understand where you're coming from Vurt, but I think the problems stem from things other than the drive price.
1) First of all, the simplest issue is that burn rates aside, and error incidents aside, once the CD is burned, it's burned and it's at CD quality. The Red/Orange book standard for CD formats and write formats don't ever change drive to drive. The only thing you may experience with a cheaper drive is either slower write times, and/or more errors. The original question dealt with "quality" of the finished sound, which doesn't change, regardless of drive price.
2) While it's true that some lower priced drives have higher error rates, this usually is easily remedied. The primary reason for bad CD burns (ie errors) is a buffer underrun, where the buffer for the burn can't be filled a fast as the CD is being burnt, causing an error. The reason cheaper priced drives have this happen more often, is either because they have a smaller buffer (e.g. 2MB as opposed to 4MB) or because they are trying to write at too fast a speed (really the same problem...) This is always able to be worked around be simply decreasing the burn speed in the burning software, resulting in the buffer not being emptied as fast. This fixes probably 90% of all problems.
3)Regardless, most drives being sold now don't have this problem nearly as much as older drives, because most newer drives have larger buffers, even the cheap ones.
4)IMHO, the best way to avoid error-ridden CD's, or CD's which go bad quickly, etc...is simply to buy quality media. There seems to be a misguided belief by many people that all CD-R discs are created equal...which is completely untrue. Better media means less errors, and actually better sound quality (exceptionally miniscule, but none the less).
Bottom line I guess, is that I agree that cheaper drives are more prone to error -- but if you're willing to live with the inconvenience of setting it to burn at a slower speed, and you always use quality media, than you shouldn't have many problems. Otherwise, it's definitely worth it to shell out the cash for a better drive with faster burn speeds and a bigger buffer.
Spoon