Buy tubes from Audio Research or not


I need to retube my amp and I'm having trouble deciding whether I should buy my tubes from Audio Research or buy them on the open market. If you have any experience with this I'd appreciate your help.
taters
Taters...i think you end up paying 2x what you can pay from a decent tube supplier if you purchase from ARC. What amp do you need to retube?
Taters,

I seem to recall that ARC had some provision in their warranty that stated that the use of non-ARC tubes may void the warranty. I recommend that you check it out before doing any tube rolling.

Good Luck!
Kurt/Taters...i have checked with Leonard at ARC and he said the use of tubes (non-ARC supplied) will not void the warranty (assuming that Taters unit is still under warranty) which it is probably not since the VT-100mkIII was discontinued in 2006 and typical ARC warranty is 3 yrs. But anyway, just thought I'd let you know that use of non-ARC tubes does not void their warranty.