Actually, there is perhaps nothing wrong with this. Because that's how things are. And perhaps I would not be concerned with who is or not participating in this fair, if I did not see the National Gallery of Art (Nigeria) listed among the galleries. I am sure there must have been some reasoning behind the decision of that institution to be associated with this event, but I do not think it advisable. To begin with, this is not the type of forum the NGA should be officially identified with, not so much because it is wrong to support fairs for African, Caribbean and Latin American artists, but because as a national institution, I would think it should set its sights higher. I am sure many would wonder if the listing of Nigeria's National Gallery as a participating gallery is mistaken, given that no other peer institution from the relevant regions are involved, not even the important Chelsea galleries that normally include artists from Africa and the Caribbean. So it is either the NGA has seen a great potential in the event and thus hopes to invest in its future with its support, or it underestimates (and thus undermines) its own symbolic capital.
Maybe I am surprised by the NGA's participation in the Art Off The Main, because I don't quite recall its official presence at the Johannesburg Art Fair this year. If, as I believe, the NGA seeks to insert contemporary Nigerian artists' work into the international critical and commercial networks, it seems to me that being in Johannesburg, where several of the serious galleries focusing on or having sustained interest in the work of African artists (including October Gallery, Michael Stevenson, Jack Shainman, Goodman Gallery, Galerie Peter Herrmann, Perry Rubinstein Gallery, Townhouse Gallery, etc) would have been the right thing to do. So, if the NGA really wants to promote the work of Nigerian artists overseas (I commend it for sponsoring a Nigerian contingent to the Dakar Biennial), it ought to make a smarter choice about how to invest its limited resources. There is no doubt in my mind that participating in the Johannnesburg Art Fair would have been much more useful for the NGA and the artists; it is a much more respectable site to pitch a tent bearing the name of Nigeria's National Gallery.

