What are the differences in effectiveness and cost among the types of hair loss treatments? Which is the right choice: medication, injections, or hair transplantation?

Recently, I have noticed a significant thinning of hair on the crown and in the M-shaped area. Feeling that shampoos and hair care products alone are insufficient, I am seriously looking into hair loss treatments. After searching online, I learned that the standard treatment for male pattern baldness involves consistently taking oral medications such as finasteride or dutasteride. I am curious to know to what extent medication alone can prevent further progression.

I have also observed that, in addition to medication, there are various hair loss treatments available, ranging from scalp injections and growth factor therapy to lasers and hair transplant surgery. It appears that the surgical process, recovery period, and cost of hair transplantation vary significantly depending on whether the method is incisional or non-incisional. I would like to know the general pros and cons and criteria for recommendations. For instance, if hair loss is still in the early to mid-stages, is it better to focus on medication and scalp care rather than transplantation, or is it common to perform partial hair transplantation early on?

I am also realistically curious about the cost. I understand that medication and scalp procedures involve monthly expenses, whereas hair transplants require a large upfront payment followed by separate maintenance costs. Based on the current stage of my hair loss, could I consult with you to determine which combination of medication, injections, or hair transplantation is most suitable in terms of effectiveness and cost, including the recommended treatment cycle and estimated duration?