Electrum's safe but you've got to keep your seed & password away from prying eyes. If you're going to invest 100-200$ in month your Electrum wallet's going to hold enough bitcoin to make you worry if you lose it so use virus protection software because you don't want to get hacked.
I believe future is for BTC and my investments will mostly on it. I wanna use Electrum as my main btc assets storing. As i heard exchanges is not safe for storing purposes.