The standard
IMO there should be a standard that all shafts need to meet.
I have noticed allot of production shafts having issues when they are not that old.
Ferrules, Tenon's , warpage cracking, delaminating.
From my little experience it should take me 18 month to turn a maple dowel into a cue shaft.
That is what has been suggested to me by most of the cue makers I know.
My maple dowel were turned round in 2004. And I am starting to turn them every 6 months.
So far so good the dowels that I have turned I have about a 90% success rate they stay straight.
I see no reason to horse or cowboy any straight grained maple dowel after storing them for over a decade.
I don't know for a fact if this next statement is true or not, but I was told by the warranty person of 2 very large production cue brands.
This conversation was 2 weeks ago and he said almost all the production cue makers , make their shafts with in 90 days of receiving the wood.
I also asked about the cue I had sent back to them in 2007 and they had lost and never settled up with me.

Well that was a very short topic
To me a any decent playing cue that is 5 years old or older that cue condition is 100% is worth something.
So my opinion is if you are going to buy a shaft, the first priority is reliability, ( the shaft should be constructed or designed to with stand a normal bar box banger.
second priority is how it shoots ( you must like the hit or the control the shaft gives you ).
I guess cost should be factored in for those who live pay check to pay check like me.
Personally I would go to a custom cue maker and request to try out some of the non laminated LD shafts.
Or even a local cue repairman, the closer to the cue maker or the cue repairman the better because in my experience you will have to take the shaft back a couple times to have it tapered down some more to get the ultra soft hit you are looking for.
I am trying to stress a point. every maple dowel that a custom cue maker has is hand picked, dated, stored for a decade, and turned over a year in a half's time period.
I think every customer has the right to ask how long was the wood cued for before being made into a shaft or even the rest of the cue.
I have some very expensive wood that has moved so much that it you would never guessed that at one time that piece was perfectly square .
Personally I don't think wood ever stops moving, it just doesn't move as much after its been prepared for decades.