From a market perspective, I2P is not very beneficial. It is stated above that I2P favors clients who offer bandwidth to the overall network and therefore will discriminate those unable to do so, particularly when we consider most Tor users simply log in and then turn it off when they are done since I2P needs time to propagate throughout the network to pick up "circuits" as the Tor comparison. Therefore users who are not always connected will find it more difficult to connect to a market site which can significantly deter a new userbase or those not involved in the community and simply want to make a purchase. I2P is also designed for activities such as hidden sites, torrenting and a manner of other issues you wouldn't want to do over clearnet and for this reason could be further portrayed in the media as a true darknet which has limited purpose for legitimate establishments. If the network is unable to maintain a legitimate cover also this can very easily pit politicians against it and could eventually put it in the same position torrenting is in for example whereby ISP's will threaten to cut connections if users are found as part of the network, where Tor would be a harder structure to do this against since it can blend into regular traffic better than I2P at the moment.