Seriously though, neat video. I'm not sure it's very practical for anybody except maybe apartment/condo folks trying to maximize space on a small balcony or something though, because it seems like the tomato and potato yields were smaller than they otherwise would have been.
On large fields it is probably too much work to do this, but in regular gardens I would say having the tomatoes grow a bit slower is of benefit to space the yield over the season and having some "free" potatoes at the end of the season is nice to have.
