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Harold Teen was quite popular in its day. Popular enough, in fact, that it received two movie adaptations. The first, in 1928, was a silent film that starred Arthur Lake, who would later go on to star as Dagwood Bumstead in the Blondie movies (all 28 of them) and TV show. The second, in 1934, is notable for being one of the last screenplays written by Alfred Cohn, screenwriter of the first "talkie," The Jazz Singer. I haven't seen either of these, but over the past few years I've been attempting to watch every single movie I can find that is based on a newspaper comic, so I'll get to them eventually.
As for today's comic strip, in a previous installment we saw that in the town that Harold Teen lives in every boy seems to have a crush on local girl Lillums Lovewell. Harold is clearly the one we're meant to root for to win her over, he being the title character and all, and thankfully he does so in this case. It seems that either the salesman is very good at his job, or none of the high school guys are very good at coming up with creative gift ideas, or possibly both, leading them all to buy the same gift. I don't think it would be a problem for Lillums to receive multiple compacts, though. You never know when you might lose or misplace one and need another.