For the record, I think Grace looks good like this, and that sweater is ADORABLE.
One reason we're dealing with the younger teen customers in this scenario is that, in spite of what they're hoping to see, there's a certain innocence and naivety to them that I find much more fun than if it were Rich and Larry or whoever.
Granted, Rich and Larry would probably consider the same quantum wibbly wobbly theories, but that's beside the point. They'd also probably try to prove Grace was an alien, which, now that I think of it, could very well happen in canon at some point.
Also granted, Tensaided would actually treat this as a genuine game of spot the difference, and would want Grace to challenge him more than anything else.
ADDITIONALLY granted, George has basically won this game already.