You can avoid looking at the price, simply by finding an investment you believe in and frequently buying it no matter what the price is.
I'm not sure shrewd investors will agree with you on that. Nothing says investors won't want to get more out of their investment by buying low if they know how to get in at a discount. Nobody likes to throw away money in their right senses. Unfortunately, most investors aren't given to analysing the market to monitor price levels. All they want is put money into projects they fancy, buy and hodl for price to appreciate.