I say do the big trainer. You may get bored with it after a while and you can sell it, or keep it kickin around for those days when you feel like something easy. Or, if a buddy is interested, you can train him up on it.
If you are interested in a large trainer ARF, take a peek at this.


http://www.maxfordusa.com/mentor-g26cctrainer.aspx

might be just the ticket!