I can't see buying cheap boots every 6 months. My $300 Red Wings are 7 years old and still going strong.
You'll have spent $468 (plus gas and etc. driving to Target) in 7 years. Then another $78 per annum.
And I have clean nice looking books, rather than a 7 yr old pair with oil, grease and paint on them, and soles that are lopsided from wear.
You're wearing 7 yr old boots? Do they match your 7 yr old socks too?