if you will have 50 masternodes you will have 50x profit of course
remember that masternode begins give you rewards after 5-6 days after installation
I understand that for 50 masternode, many virtual servers are required, which is rather inconvenient. Probably it will be easier to wait until the limit is increased to 25k coins.
Only one question, 25 thousand coins on profitability will be equal to 25 thousand coins or 1 thousand, for those nodes that were made earlier than 800k block?