New van, agree 100%
If you only have 1 van...at least for me, it's worth having almost 14' for the 1 or 2 loads a month that need it. Not only does it get me offers quicker when home, it's easier to find a backhaul when something is available that all the shorter vans can't take.
(For Sprinter, that's not the extended, just the regular 170" wb. Ford Transit you need extended for 14', Ram Promaster has to be 3500 and extended, the 2500 is shorter. Bring a tape measure the dealers / private sellers usually don't know what they have)
Newer Sprinter extended, I only know one person with one, he used it to grab auto loads that were too much for a regular van
It DOES reduce the amount of weight you can legally carry to have an extended.
Edit: maybe the reduced weight misses the 1 or 2 loads I pick up on size...you can't win lol