The bottom line is if you know you're getting an equity at a great price, then go for it. Obviously the prices aren't static so of course they'll go higher and lower at some point. One of my funds went down to $42 so I bought as many shares as I could at that time. It didn't take that long for it to get to the $60 range and by Jan 2022 was up to $71.49 a share. When I first bought that fund decades ago, shares were $17 and change. I wish I'd held on to it but I did manage to sell at a profit. I started buying more shares about 4 years ago when it was in the mid to high $30s range. Now it's pushing $60 again with this bear market happening.
BTW I have self tallying spreadsheets that show the value of each of my investments including gains and losses. I have self tallying spreadsheets for the dividends as well that give the same information. So
I can see what the gains (or losses) have been on my shares and the reinvested dividends.
@Creek Pirate @Liberty