There are a few reasons why one might need an extra long shower caddy. One is the need for more storage. Whether you have a large family, or simply like to have several products, sponges and facecloths handy, the extra length usually means the caddy has extra compartments. Another reason is if you cannot reach the caddy because it just doesn’t hang low enough. The upper compartments can be left empty, and you may use only the reachable lower ones. Another option are pole type caddies which reach up to the ceiling.
Pictured: InterDesign Grand Arc Shower Caddy, Clear
Pictured: Umbra Bask Shower Caddy