Blenders...

In our twenty years of marriage I have owned a number of blenders. For whatever reason none of them seems to last very long. Those that have lasted have been disappointing. I have lusted after a Vita-Mix blender for a long time. The reality is that I simply cannot justify the expense of one for the sole purpose of making protein shakes and smoothies. I am in the process of deciding between getting another full sized blender or taking a chance and buying a personal blender with multiple cups and attachments. Since we have cut grains and sugar out of our diet my husband and I have found we really like smoothies. It is kind of inconvenient to wash a big blender to make our unique drink preferences. I am thinking will be the best option for our needs. Any opinions are appreciated.