Geoffrey Durham advises to close your show with juggling. Now not literal juggling but something where the audience doesn't have to think or be hugely surprised with a strong magical climax. This is where a production type routine fits perfectly - like the Multiplying Bottles.
So why not a strong magical climax? Well the classic books tell is a production will bring applause while a vanish will stun an audience into silence.
Juan Tamariz put it this way: In a film when each scene ends, the viewer is looking forward to what will happen next. OK, the hero got out of the burning building, but will he get to the car in time? Yes he did, but now will he be able to diffuse the bomb?
On the other hand, with a strong magical climax your audience does not look forward, they look backwards. It might be for just a millisecond, but usually longer. During that time they are replaying everything that happened looking for a possible solution to how the effect was achieved.
So, with a routine like the Multiplying Bottles, there is no thinking to be done at the end, just a completion of the picture, like putting the final piece into a jigsaw and this satisfies the audience's sense of finality. They are waiting to applaud and you just need give them the cue that it is now time to do so.