lately it is depreciating. it is true. but the ether collects itself shortly. ether I am most confident when investing. because ether is important. very important for new projects. It's scaring you that it's losing value. If there was a params right now, I could turn this on and buy it. if you want to take it. You will not regret it.
For both long term and short term, ethereum may not be the right choice when considering its inflationary nature. Also, it was heavily pre-mined by its devs. Hence it may get dumped at any time which is highly expected one. I agree it has one real time usage of providing platform for ICO, but in market many other coins also doing the same.