Upgrading from. Rega Planar 6 to a Planar 8??

Thanks to your responses. I do tend to like a darker sound and have heard the P10 with Hana red and it can be too much. Rega cartridges are definitely not in play since I went through 3 Rega Exacts and the built quality is horrible. 

HI Glennewdick. I am aware that there are several improvements for Rega tables. The one that comes to mind first is all the Tango Spinner products. Just concerned about resale value since upgrades ultimately don't get you any more money on the used market. I would like to share that I bought the Blue Edward little belter and also Herbie's little mat and love these tweaks. The table originally came with the white belt which was ok. Out of curiosity I bought the Rega reference belt from Music Direct and it literally sucked and returned it after 10 hours. The wow, flutter and speed stability were awful.$80 for an atrocity. I also find it interesting that it got amazing reviews from several people. Both my wife and I are professional musicians and could not believe how lame the belt was. Back it went to MD. Thanks again for you responses.