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.
Just don't invest in those shitty pump&dump scam masternode coins. Choose a project that has proven itself to be trustworthy. Like Snowgem for example. Chances are high that this project will rise in price and interest due to hard work of the officials. So it's a good investment. I don't think you will lose money. Also look at what nUm81 said. You can always cut your losses (if there will be) and step out of the masternode bussines.