Low flushes

[Chimichonga]

Freeroll potential and backup/backdoor outs /flush-blockers.

More often than not, the suitedness is defensive rather than offensive.

[Lafortezza]

Depending on your opponents betting patterns in a particuar hand you can figure out if your flush draw is likely to be good or not.
Headsup (in a battle of the blinds for instance) I'll often draw to any flush, 7 high or whatever.