1. $3.5 is too cheap for a anonymous Coin like Zcash and Monero, $500-$2000 is acceptable for DeepOnion.
2. DeepOnion has the best community and the best marketing approach. Marketing is important, just check out Dash and his brother BlackCoin.
3. DeepValut and DeepSend. The secret weapon has not been released. It is gonna be a big one.
Check out at deeponion.org
Yeah, I also think that DeepOnion is kind of undervalued right now. They haven't even release the whitepaper yet it is at $3.5 now!
Once they release it, the price would surge to the moon! that's why I'm stacking as much as I can.