It is true that consecutive notes don't usually carry a premium unless they are older series but that being said there are a lot of collectors who collect runs. Usually I see people who collect runs of 3 to 5 consecutive notes. Again they don't always carry a premium but later on when you try to sell them you will always seem to get a little more for them if you sell them as consecutive notes.
I've had more consecutive numbered notes than I could ever need. The newer ones of course can be gotten at the bank, I have a few stacks of $ 1's, $ 2's that I give out to beginning note collectors. As to value of the older ones I have I could not do anything with them so just traded them one at a time.
I had a lot of older 1934 series consecutive numbered notes that no one seemed to want so just done away with them one at a time, still have a bunch of new 1934 series $ 100.00 consecutive notes that I trade off as singles, not here of course as I'm not yet allowed to.
I always let the collector I'm trading with know that I have them in consecutive order but only once did a collector take two of them. Have included a photo of 5 of the $ 100.00, just for those that have never seen consecutive $ 100.00's