You are concerned now with your PPL course. But, think a bit further ahead - what will you fly when you have your licence? Probably an R22, unless you want to go to something bigger and EVEN more expensive.
The R22 has a reasonable turn of speed for a 2 seat flying motorcycle, contrasting with the more gentlemanly pace of the 300.
In that case, it may be sensible to learn on what you will fly solo. As others have said, it is easy to convert from an R22, less easy to convert to it.
H