I think for those that just enjoy the act of vaporizing, having a lot of tasty lower THC buds is where it's at. I have one strain that is a little citrus/little gas and is just amazing in the vape, but the yield on squishing it, is just a lot lower than I would expect. But you can sit around slowly elevating for hours with it and not feel burnt out by 2 PM. Also, with having a large quantity, I really enjoy having no compunction about loading a stem/bowl/whatever just for one extremely large taste saving rip and tossing the rest. No, I don't do that every time, but it is nice not to feel bad about waste.
For concentrates, again, I also appreciate having the quantity to squish or process with solvent as much as I can imagine. The only issue I came across this year was that I lacked air-tight storage for everything and was noticing the buds would not stick to themselves during pre-heat squish, resulting in lower yields. So if you do have to store a lot, I highly recommend a 5 gallon bucket with a gamma seal lid. Not perfect, but they have been doing well by me so far.