How often do you replace bike shoes?

I've been getting about 3 years out of a pair of road shoes.  I probably replace the cleats once a year on average.

My tri shoes last longer.  My first pair of Lake tri shoes lasted about five years.  Just got a new pair of LG tri shoes for this year.

I usually wipe off my shoes with a damp rag after each ride and stuff them with newspaper to dry out if they get wet.

Mark

. 

Only when they are so nasty they need their own room.  I'm on my third pair of tri shoes because they are always wet and funky, although I finally tossed the last pair in the washing machine and they have new life!  

I have the same pair of MTB shoes I bought when I first started in 2006, and they suffer the most because I wear them in snow, rain, etc.   

I had my last pair since 2003.  I just replaced them 2 weeks ago.  They probably had around 20,000 km on them.

Same pair of shoes since 2009, but I've replaced the cleats almost yearly.  

So far they haven't become too disgusting, but I've also thrown them in the wash at the end of each year.   

Stinky bike shoes, easy fix wash them in dishwasher top shelf w/dishwash soap and no dishes taking out the inserts. Do not dry them. Afterwards stuff newspaper in them to help get out the wetness then ideally put them on a boot dryer to get the dry within about 12 hours. Boot dryer works great for wet running shoes and more just buy a cheap one.

I replace my bike shoes usually every 3-4 years so about 15000 miles and cleats atleast once a year.

Every couple of years. Usually they get stretched out or I break the straps.

My Sidis are probably 12-13 years old.  I just replaced the buckle and strap.  I think my feet will wear out first.