A juicer can be like exercise equipment in that after awhile you get tired of it. Mainly of cleaning it. Keep that in mind while shopping.
I have a cheap one pint blender from Walmart (under $20) that makes great smoothies from frozen berries, plain yogurt and vanilla silk milk. Also bananas are added at times. Its a 1 minute clean up job, but its not a juicer.
From a health perspective berries are the best fruit you can eat. Any of them. And they do not need a juicer, just a cheap blender.
I also buy Bolthouse or Naked premaid smoothies in the refrig. section at the grocery store. They are about 1/2 gallon in size.