What's the meaning for someone to join bitcoin at the lower price, those new people should consider bitcoin as a currency, same like buying a GBP, it cost what it costs and continue trading it.
We should continue working with the actual price and not think that we should wait for $100/BTC when I think it's to late to think what to do next.
Moving on is a must now, if you look at the current price that is like 500% more so do not expect that the price will still goes back to $100 as that would only be possible if there is a strong crisis that will happen and I believe it will not be happening again like what happen in the past.
With the recent move of coinbase by accepting and have the ability to trade ethereum on their platform can be not a good thing for bitcoin.
It's pretty impressive how fast ethereum has joined the market and now it's one of the most traded coin on the exchanges.