So you're sayin' these less-than-stellar Cor-Teks could end up being collectors items?
Less than stellar is perhaps too harsh. If they play, function and sound exactly as they should then its difficult to call them 'less than stellar'. A tiny gap in the fitting of the recessed back-plate is, in my opinion, unlikely to be a highly sort after collectible and I doubt that the off centre birds will. If they had mistakenly put left handed fret-boards on right handed guitars so the 'birds' were upside down but the instrument is otherwise perfect, still perfectly intonated etc, then a 'small' run of a few hundred of guitars with that error, could make them more sought after than a limited run of a few thousand in a particular colour.
In the past, minor visual errors have made certain items worth significantly more than their corrected version. For example, there was a small run of stamps where the aeroplane was printed upside down and these are worth considerably more than the 'correct' version. Its happened with coins too where something has gone wrong in the minting process - so yes - some 'mistakes' can become collectible and, often due to the very limited run before being corrected, are collectible because there are far fewer of these than actual 'limited edition' runs.
Minor mistakes, like some dust or something under the finish, a slight gap in the fitting of a back-plate etc are unlikely to be collectible but they are inconsequential to the playability, to the sound and function of an instrument. Even the birds not quite as centred in the frets may not be collectible but to someone, this may well be a 'quirk', a feature that they like because its different, its unique and it has no impact on the function, playability or tone. This is almost like a unique 'top' - perhaps more so because some unique tops look so similar that they blend in with each other. Its like Fingerprints that maybe different but still can look like so many other fingerprints.
Another way to look at it is that some people really like the 'runt' of the litter, the one that some may see as 'flawed' but another see's that as 'character'. Where others want 'perfection', some look for something that sets it apart from all the others, something that makes it unique, different or, to them, special. Some little quirk - as long as it's not something that fundamentally affects its function.