I'm not a very affectionate person, but I miss real hugs. Wheelchair hugs are a poor substitute. Real hugs are natural, spontaneous and can be initiated by either party. Wheelchair hugs, on the other hand, are awkward, planned and have to be initiated by the standing party. The only way I know to initiate a hug is to say, "come over here and give me a hug." I can't just go up to someone and give them a hug.
Here's how it typical wheelchair hug goes. A person comes up to me, leans down and over me while I reach up and lean forward. The taller the person is, the more awkward the hug. Wheelchair hugs tend to be quick because of the uncomfortable position. Then, the biped straightens up and I strain my neck upwards. No wonder wheelchair designers have been working to come up with chairs that enable people to stand or at least be at eye level.
Until such devices become widely available, I will continue to live my life sitting down. After all, a wheelchair hug is better than none at all.