If you can make it to a quilt show, many times there will be several different manufacturers there with their machines and they will let you try them out. Coming up this weekend in Ontario is the Road to California show and they will have quite a few different machines there. Are you in Elk Grove California? I think I saw someone mention a show in Santa Clara sometime later this year.
I won't be able to make it to "Road" this year because of Med issues but hope to go the the International Quilt Festival in Long Beach in July and will play with some of the machines there.