Regardless of the gameplay style chosen in Cyberpunk 2077, you are likely to use many vendors' services. You can buy brand new weapons, armor or cyberware from them, but the possibility to buy ammunition or healing goods is also important. Therefore, it is worth knowing how to lower the prices and how not to overpay for a given good - you will find out all about it on this page of the guide.
How to lower the vendor prices?
Firstly, it should be mentioned that not all vendors have the same prices. It may happen that the exact same item will be priced differently by different vendors - so e.g. if you are looking for a particular cyberware, you may want to consider visiting several ripperdocs and comparing their offers. In addition, some vendors will have missions for you - if you complete them, the prices will be lowered.
You can find all about the way vendors work and the related aspects described in detail on a separate page of the guide - Vendors.
However, the extent to which the factors described above affect the prices is minor. The main way to lower the prices offered by vendors is to increase their reputation. You gain reputation, or Street Cred, by doing most of the activities in the game. By killing enemies and performing missions, you will quickly reach new reputation levels. If you want to increase your reputation quickly, do all gigs and respond to all reported crimes. Moreover, subsequent levels of reputation not only lower the prices but also increase the range of products offered by vendors. You can check your character's reputation level and bonuses related to it in the character statistics.