Lag can also be fun.
Some days ago I happened to come into a lobby and suddenly it went laggy and some other people left the lobby because of the lag but I did stay and I loved that I did. We had a nice chat and wowi fights. YES it does play differently and I can understand that "fun" values but I think that gaming also does value. Sometimes the ethernet is good and sometimes it is not. Sometimes you meet people from near you and sometimes not. And I think it is still worth it to try it and try to adapt to such situations because I think that it begins to make fun if you are getting used to it.
It is the same with different hardware, net... It is less combo-like and plays differently and then you sometimes can not counter or pressed things that are not working because of lag but then the more you do need to try to guess what your opponent is possibly doing. I think both things can be totally fun to do. Random character, random stage, and also the connection was strange as well but I think we all pretty much enjoyed ourselves even though the stage was not really welcomed in this game, nor the net was on that day but I think fun is what you make out of it. And we really had some fun there ^^