It wasn't really a missed opportunity. You made a decision that was correct at that particular moment in time.
Hindsight is a drain on the emotions and falls straight into the coulda, woulda, shoulda trap.
The price of the heating system could have gone up after you got yours. Then you'd be writing a self congratulatory post extolling your excellent decision making skills and luck would not get a mention!
Don't be rueful and don't forget it could be much worse. If it weren't for bad luck, you'd have no luck at all ;-)
Take it easy, life's too short so best wishes to you and your family.
Yep, it isn't a missed opportunity - bloody annoying though :)
They might go up based on this and Covid. But I think they will not rise significantly.
People say they have "zero luck" as if it is a bad thing - Neutral is okay if the alternative is negative :D