..., but I tend to disagree because there aren't even that many people who run nodes these days.
Keeping small max block size doesn't solve the decentralisation issue (decline in node count). At very best it only slows it down.
People who run nodes don't get any direct incentive + most newcomers will go straight to lightweight clients or online wallets for convenience, so here's the real problem.
Just to show how silly this argument is, right now you can buy a 6 TB hard disk for 270 euros, any computer you buy comes with at least 1 TB hard disk, 10 years of 2 MB blocks are approximately 1 TB, I think, right now, at least when it comes to storage we can afford 8 MB blocks...
Imagine how cheap storage will be in 5 years, in 10 years, plus optimizations made to the protocol.
People bitching about block chain size and delaying adoption because of this is just silly.
Yes. But to be fair, the main concern in blocksize debate is network bandwidth capacity rather than just storage.