Well, if you are me, then wait it out
On my ford, or when it was mine, the passenger side got a good snow ball from a semi, made loads of spiders all over, crazy. To boot there was many to begin with! Driver side was good, some spiders close to the bottom, etc but nothing that can hinder sight. My brother is pissed now cause the windsheild is all cracked up, and has all the small chips from bugs, rocks etc, regular use. Me and dad just laugh our asses off at him, tell him if he wants a new sheild, go buy one
My van has spiders all over, nothing as bad as the truck but its getting there. Then one day going 80kph on a 2way, a flat deck semi going the opposite way, also going at least 80 flung a rock up, and smacked in the driver side. Just under my eye level. Ok more like throat level so again nothing to hinder sight. Im gunna ride it out longer yet. No cops have yet to pull me over and tell me its unsafe and go get it changed asap. Ill shop around sooner or later just to get a price, but im in no hurry to buy a new one yet.
You go and buy a new one, guarantee you your gunna get another chip! ... Maybe thats why I wont get a replacement just yet!