After working in the Human Resources consulting world for a number of years, I was incredibly familiar with the value that personality, cognitive and behavioral inventories add to the selection process, when used appropriately.
It lacks personality, tends to be overpriced, holds little sentimental value (if a consumer purchases it online) and can be a pain to acquire if a fan takes a piece of equipment to a game or trade show hoping to gain the sparse attention of a player.
While there is considerable value in these types of sponsorships, we find that companies are able to convey a story and personality of their service and product more easily and convincingly through the personality and media outlets of a professional eSports team or player.