Digital piano vs high end midi keyboard Hi

Quick background. I started piano this year, with a goal of learning jazz and blues improvisation. I am currently still very much a beginner. I have a teacher twice per week.

At the advice of this sub and the local piano store I bought a good piano from the get go. This piano is a Yamaha clp 545. I am pretty pleased with it, apart from the price point (€2k). 

However, I've been toying with pianoteq and kontakt (I live with a music producer). To my (untrained) ear these sound just as good, if not better than the onboard sounds in the clavinova.

Onto my question:
Are there any downsides to trading in my clavinova for example for a studiologic SL88? The latter is much cheaper, has good action and wooden keys, and is -to my newbie ear- equal in sound quality. 

