Buy opportunity or sell opportunity?

Thoughts?
Of course, today is a buy opportunity because, if you noticed, the price is going down.
The best practice is to buy BTC on the way down and to sell on the way up.
If you were going to sell some bitcoins, then you should have already done that.
So under the current price direction, the opportunity is here and that is to buy little bitcoins, and the only questions are how much to buy and at what price increments.
Yup, I'm leaning towards buy opportunity too.
Just gonna wait a while to make sure it doesn't continue downwards.
I think some huge gains are in sight the coming months.
I just think that it is too risky to either wait too long to buy BTC or to buy too much BTC at any given price point.
Let's say for example that you have 100BTC and $5,000 in your BTC investment fund, then you likely could spread that $5,000 over increments down to $550, such as buying $500 every $10 down, or some other arrangement that is comfortable for you and maybe depending upon how fast the BTC price goes down (or if it goes down).
Yet, if BTC prices go up, then for every dollar it goes up, you have $100 in profits, then if the price goes up by $50, then your portfolio is going to be up by $5k anyhow, even if you do not buy any, and maybe in that case, you could sell $2.5k or so of those profits in order to be able to buy back... and therefore if BTC prices go up to $700, then you may have $7,500 in cash and only about 96 BTC.
That is kind of the way that I play these ups and downs in prices, yet overall my number of BTC keeps going up (little by little without very much overall risk)