Encryption: AES vs 3DES

I have the belief that we should be using the strongest encryption we possibly can.  I understand that some encryption schemes have not be broken as of yet, but I still prefer higher security for my customers.  If you were my customer, wouldn't that make sense to you?  It does to me.  More security is always best in my opinion.  And, in the case of AES vs 3DES, AES is much faster as well.  In fact, AES-192 and AES-256 is much faster than 3DES.
 I run into this question when setting up new VPNs for customers.  I occasionally find that someone wants to use 3DES instead of AES.  I will usually ask them to use AES-256 instead.  Isn't your data worth securing?  I think it is.