The Bender is not a typical monorail. Monorails, with a very few exceptions, are hard to carry - at least a lot harder than a field camera. Trust me, I've tried it. If you do field work, you want a field camera. If you want a monorail, look for a decent used Sinar Norma. You should be able to get a nice one for about $400-500, and it is far more than twice the camera of the bender. In fact, it is a classic.
Of course, for about $750 you could have a nice used Shen Hao (if you can find one) and a used Cambo 'rail for the studio.