Tiger,
If you want wheels then by all means put wheels on it. It's really a personal choice whether you want them or not. As I've already said above I don't want to lug a heavy flight box around, but there are others that want to. Who's wrong and who's right? there isn't any wrong or right when you get down to something like this, you need to do what you want and what works for you. There have been a lot of people here that have presented their ideas and what they do, but what you choose it completely up to you. If you don't want to carry a heavy box then put some wheels on it and roll it out.

Ken