There is a rumour about hard fork of ETH and the volume in the trading of ETH is aggressively growing .Prices are showing strength .Is it an opportunity to buy on rumour and sell on the news to book profit.
The market cycle will usually grow in Q2. so i think you should buy ETH now. Its price is still not high compared to its true value.
$ 140 is a reasonable price to hold for 1-3 months. I'm sure the price of ETH will soon increase to $ 200 in Q2 and Q3.