Hi,
100Mbps is not a small node. Thanks for running a relay!
When you say you’re going to spend more money on it... do you mean hardware or bandwidth?
All of my relays are running as virtual machines on multiple computers to maximize the CPU and memory usage. If you didn’t want to virtualize your machines you could put two Tor nodes on the same physical box to maximize hardware usage.
If you’re comfortable telling us where you’re putting your money I suspect we can advise you better.
John
Quintex Alliance Consulting