I believe for the current Ehereum price it is highly recommended to buy more to then hold and sell for next year. this is a strategy for me to buy Ethereum and sell it next year.
I like your strategy, of course, it will bring a significant advantage. remember this now ethereum is recovered in the range of $200 and this is a good sign that the coin is good for investment.
I think the best strategy now is not to buy right now but wait a few months when the price will drop even lower. If you look at the price of the coin Ehereum in August, you can guess what price will be in October.