1. I don't need to worry about a giant amount of computer speed, except when it comes to recording with MIDI, which is more of a sound card issue than actual computer speed.
2. Many people argue the imperfections of hardware can sound better than software recreations. This point applies largely to the recent trend among software developers to recreate classic hardware synths.
3. Legally, I have more freedom to use sounds for whatever I please if the source is from something other than a computer.
1. Even much of the most advanced software costs a fraction of the amount for a hardware equivalent. This is especially important for me because of my tight budget.
2. No real latency issues, since the sounds would all come from the same hardware that would sequence them.
3. Having recently replaced the battery for my Roland JV2080, I notice that software tends to be easier to troubleshoot without spending lots of money.
In other news, my next synthwave album may have a title similar to this. Don't expect it to be ready for months, however, due in part to possible game music projects.