So then about jumping into a turbine for a first helicopter?
If cost is not the primary constraint, IMHO, this is the way to go if your intent is to end up in a turbine. I took this approach and am happy that I did. Up front costs are higher but you get some of this back when it comes to insurance, training, etc. However, not all turbines are created equal, and a 206 or 480 will likley be a less expensive trainer than the 500.
The most difficult thing about a turbine is learning to start the engine without destroying it. This has proven to be within the capabilities of many but not all humans.