Tubes for a pre stage... matched NEW or unmatched identical NOS?

I'll take matched thanks...    I say this confidently because I have a tube tester and have had some new tubes that many would consider "junk"    With a tube like 12ax7 , the tube's performance has a lot to do with whether each triode section is close to the other.   There are two triodes in one glass envelope.     

The last few times I bought tubes I did pay for matched triodes, pairs, and screen for low noise and they were exactly as paid for.   Excellent,  quiet , super strong emissions. 

you don't need to match small signal tubes and unlikely you need to match even power tube.

when you have bias capabilities there is no reason to match tubes. 

@ jeffstrick

"when you have bias capabilities there is no reason to match tubes."

I’ve never seen that option on preamp tubes! Have you?

I always buy a matched pair when there is one per each left / right channel as in this case.  

Also for preamp tubes I request them to be screened for low noise.