Chandan mate, you own the sistine chapel and are contemplating to put wallpaper on its frescoes that were last painted by someone called michael angels or so
500 yrs back.
You can keep the demo piece mate unless you are getting a better model.
i mean, the more important factors about tts performance are its setting as well as cart n stylus setting as also hoe clean your lp is.
having a platter thats purred for a few hours aint a big issue mate. how many people do you think demoed the said tt in a month??
still, your loss , some other forum members gain.
just my two pence dear