the problem would be accessability in the long term, when tpos kicks in posw has real potential and if masternodes cost too much it hurts the network. if posw reaches pivx prices, which is absolutely possible by looking at the goals, then a masternode would be 169k usd (50k posw) to 338k usd (100k posw). i think it is a good choice - especially with this roadmap https://posw.io/roadmap/ - to keep the amount low so the network wont be hurt in the future