The miserably brief lives of short, upright windscreens are well known to those who have owned Jeeps before, I have little doubt I'll be getting a new one about every 18 months with all the trash/rocks/etc that litter the highway shoulders here. At least for the Jeeps they were reasonably priced, last one I got for the JK was under $150 installed.
UPDATE FROM MY ORIGINAL POST FROM ALMOST A YEAR AGO:
I am currently on windshield #5. In 2 years.
Just got another chip that spread all the way across my windshield this morning. Eye roll.