The ideal block is the most costly block to verify…and that’s not necessarily a bad thing, it’s a good thing in fact. That said, I think even for individuals running a node just to verify their own transactions (by somewhat awkward definition called “non-economic” nodes) full blocks won’t be cost prohibitive. The idea that making your node public to help others download the blockchain is a bit misguided, but I can see why people don’t like downloading crap…it wastes time for no benefit to self.