I do think it's a good idea to end it, and to end it on your 50th birthday, and to end it this way. All for the reasons you already mentioned. It will also give me time to appreciate and think about many of your blog entries - which was something a bit hard to do when I knew there would be another article up the next day.
But I will certainly miss Click Opera - it was such a pleasure to get a well-told, thoughtful look into other people's lives and thoughts via your daily posts.
Hope I'll bump into you in Berlin one day!