Icarus - One reason to go low - the view is better ;~))
From an airliner at 35K you can see for miles - but no detail and it all looks 'flat'. Down in the weeds you feel like a bird!
One decider is wind - if a headwind stay low to avoid it, if a tailwind go high to take advantage.
I usually have 2 phases to my VFR bimbles - high for aeros, low for sightseeing.
SSD