I have no idea how to value BTC on the fundamentals, so i pretty much stick to the technicals.
Perhaps what's happening right this minute is that the split is generating trading interest. I bought some myself, but I'll be looking unload it all, or even wait for the split out of curiosity and then sell the BTC, along with the free BCH!
But as for long term holding, I'd want to wait all this has settled down following the split and segwit being enabled....then look at the technicals again😀