For me the main reason for investing in CLH is its Sector...

For me the main reason for investing in CLH is its Sector basically a 'debt collector' they carry alot of debt because they buy it from other company's or people. and try to get the money back. Some view this a a shady or bad business but hey it sure beats going bankrupt rather then paying CLH.

Also debt will always be around like toilet paper or trash collection its very hard to out innovate or give a better service its more about the ability to get the money back at a profit.

perhaps abit messy but thats my 2 cents worth. its a slow long term buy however.