To some degree there is always this first mover advantage. DASH for example became damn big with their master nodes and there won't be many getting to where DASH is today. It becomes less exciting over time.
More active masternodes in network, less rewards for each, less profits for each.
That is exactly the case of DASH.
I will spend days to think of Ultima before decide to invest my money.
Sure but what is it worth if you join a network that is not popular in the hopes to get a lot from master nodes. It won't happen because nobody uses the network.