Wine as an investment

In short, you won’t be able to navigate this part of the wine world without consultants and ratings. That is, if you are purchasing wine with the goal of selling it. In order to sell such a high-profile wine it is crucial that one exhibits the wine’s provenance. Ergo, one must either be able to present the wine’s history (the way it has aged) or have the reputation of a serious wine collector. 
Just as is the case of an expensive work of art. It also goes without saying, if you yourself buy wine of a high pedigree you should be prepared to provide it with the appropriate living conditions: either somewhere on your own or rent a specified place for doing so. It may also be important to note that wines as investments is typically bought in cases.