Usually VPS fee costs $5 per month, but it will become cheaper if you choose to pay fees at once for three-months, 6-months, or 1-year period. That depends on how long you plan to use VPS service and to keep your masternode actively operates. However, I agreed that nowadays, with masternode payment rates and price of Bitsend, it is unprofitable to run masternodes, but if you are a long term investors and strong supporters of BitSend, yes, you can keep operating your masternodes and also support Bitsend network.