At my house, here is what happens (or at least did, a few years ago when I had both):
1) Everyone gravitates to the vids.
2) They get bored with a vid and I suggest a pin.
3) They try it, get frustrated, and I try to explain the pinball concept usually with a demo.
4) People of all ages - 4 to 90 - somehow "get it" and want to master the pinball machine.
Additionally, when I introduced my kids ranging from 2 to 23 to pinball machines, they ALWAYS preferred the pins. 3 girls and one boy (man) would rather play High Speed, Target Alpha, and Pin*Bot over Wizard of Wor, Star Wars, Ms. Pac Man, and Centipede.
The one Achilles Heel in the whole works?
Bubble Bobble. Females cannot resist that game. (Cannot blame them - good game.)
Kids love that heavy steel ball wreaking havoc on a well designed playfield. Pins are no different than vids in terms of design - a poorly designed pin gets played a few times but a well designed one gets repeated play from everyone.
Nothing beats the feedback you get from the SMACK of a steel ball bouncing hard against a tempered glass cover on a pin.
When little kids *click* and instinctively understand the individual flipper buttons, it's cool. They go from randomly banging flipper buttons to starting to use each button individually.
OK, rant off, in summary pins get repeat play when available here, and vids are popular, but that silver ball draws them in again and again.