You need to resolve which of the features being provided by ContactStore you want and don't want. ContactStore is providing a searchable database of recording details and long term bulk storage including automatic archiving to DVD.
Using Voicemail Email is an option for getting the files off the voicemail server but that's about all, unless you keep them all in an email account so you can search/sort the emails. However remember that at 1MB per minute, recordings can get large and many email systems will reject large attachments by default unless you reconfigure them.