In terms of investment, botox does require ongoing maintenance since results aren't permanent, so you need to think about it as an ongoing cost rather than a one-time expense. That said, many people find it worthwhile because the results are dramatic and the procedure is relatively quick and non-invasive compared to surgical options. Some people combine botox with other treatments like fillers or skincare to maximize their anti-aging results. The frequency of treatments usually comes down to every three to four months for most people, though this varies. What I've noticed is that the overall cost depends heavily on the amount of product used and the expertise of your practitioner. It's worth having detailed consultations with several providers to understand pricing and what you're getting for your money.