Partially clearly you are correct but regardless those who have bought Blocknet now and in the past believe it to have some future and are rooting for the project to succeed that we can certainly agree on.
As I have said I am just a noob and dont understand half of it lol but :
I like the idea of owning a node.
I like the idea of it being exclusive yet "accessible".
Say you have 20 guys ending up owning all the nodes there would be no real difference between an centralised exchange today and a decentralised in the future basically.
But as Synechist commented I believe this is an issue being taken into consideration.
As the price rises the price of a node will almost certainly go down. About a month ago the node price was going to be 10k but as the price rose it was decided to lower it to 5k. I think its at a very reasonable price right now if people want one, specially compared to a couple of weeks ago.
The important thing to think of for those who don't have a chance to get a node and are wondering why to invest in block is the fact that all fees are paid in block. that means every time someone uses the exchange, no matter what coins they trade, the fee will be bought from the market in block before it is paid out to nodes. this will put constant buy pressure on BLOCK.