i don't know if you can get one for cheap. a lot depends on yr body type. corsetstory has decent quality steel spiral-boned corsets (suitable for waist-training) at ~$100, sometimes less if you catch one on sale. however if your hips, belly, or breasts don't follow the premade proportions, their corsets may not fit you. your corset needs to fit a certain way, very well, for you to do waist-training comfortably and healthily, and off-the-rack corsets won't fit your body as well as a custom-made one. however, those will cost you hundreds of dollars. definitely do lotsa research--corsets are gorgeous but they're really more involved (and pricey) than they seem.