You can rent a VPS for $5 per month and host multiple Masternodes on it (only if they are from different coins in most cases). There are various services in the $8-10 range that will manage your Masternode for you too, although I'm not sure which ones support SnowGem specifically.
In my opinion, investing into Masternode is very risky, mainly because real ROI will be much different than estimated ROI at the time investors decide to invest into their interest masternode coins.
Masternode or not, any coin or token carries with it some risks if you're going to invest in them. Proper timing of when to buy and when to sell is essential, especially in crypto. One big advantage of masternode coins is that they allow you to earn passive income, as long as you have chosen a good coin such as Snowgem.
