if we wanna attract a lot of new people and immediately create a big network of masternodes, why not get rid of any requirement.
I am even thinking about none at all, ZERO, NADA.
Not 1 SPR as I said before.... better yet, why not
0 SPR.

(I am serious)
We'll need some minimum amount just to protect form potential DoS attack at launch, we don't want someone to try to create millions of masternodes.
... and those millions of masternodes will immediately be shut down (not allowed to continue) by the protocol, because of the 1000 masternodes which have more then zero SPR in them, right?
Aren't all those zero-spr-masternodes going to communicate with the network, recieve the blockchain and list of the top 1000 masternodes and quietly shut themselves down since they have too few SPR in them?
Where exactly will the Ddosing happen? Constantly asking the network to send the list of the top 1000 allowed masternodes? Is this transmitted data going to be what bloats/attacks the system?
Isn't this data communicated thru the blockchain?
If not, maybe it should, so that miners can secure this data.