I´m as well not investing in any ICO´s anymore at all as like you say it´s really hard to judge them and even in case they sound promising it could still be a scam or the project doesn´t get far as the founders don´t really push it after making a bunch of money...
Steem and BTS are as well my two biggest holdings and just like you I strongly believe in their major success within 2018 and beyond. We´ll see prices in future that are far away from the ones today. I think your estimation is about 100$ for the near future, which would make everyone who owns 1.000 Steem a wealthy individual :)
BTS has definitely been more frustrating lately, I actually really love the exchange and am surprised there aren't more people on board. Seems like people just go with the FOTM or whatever is being hyped instead of looking at the actual products. I'm waiting BTS out though, @dan and co seem to always create great products, I'm most hyped for EOS even though it's a ways off