Are Christmas eCards a Good Idea?

Coming into the festive season I thought I'd pose this one to the Community. I am part of a small business and have put a short e-card together today both to re-inforce our rebranding and say hi to people we haven't "touched" for a while. I wonder what others think of this. Here's a link to our card if you want a peek - http://www.consueto.com/hohohoconswaytoe.jpg It does feature dour English humour so beware. Oh and Seasons greetings to you all!