I see that it is increasing consistently in a yearly time frame. If we look at yearly lows, they are higher for each year and between 2009 and 2018 each all time high was surpassed by a new high. Both of these factors indicate a steady rise in value. Trying to catch a swing is fine if you're a trader but for most investors sending coins to an exchange and waiting for the peak can be very risky. For isntance, if you sent coins to an exchange at 11k and it went to 12, you'd probably see it as a high price, not knowing it would later go to 16. Each of these levels (13k,14k,15k) would be a potential high, and while the price kept going up you'd have to keep everything on a centralized exchange.