That's one opinion. To each her own.
Once you find the products that work for you, it's no more costly than anything else, especially if you use some of the tried-and-true drugstore brands that many use.
The only thing that takes any time at all for me is air drying time, and I've found ways to reduce that.
2C/3A/3B - mod. CG, med. to fine, normal to low porosity/normal elasticity
Current Main Rotation: MG217 medicated or Aim2Health 'poos as scalp needs, YTCarrots or Elucence cond., Spiral Solutions Protein Trtmt & Deeply Decadent Cond., CJCCCC reg or lite, KCCC, AO Mandarin Magic, Giovanni LA Hold Hair Spritz + lots more, sporadically
HG Method: Super Soaker-ing + Smasters-ing, short upside down diffusing then clips or clamps & air dry. Blend gray w/henna glosses