Answer first, what is your goal?

Most good programs out there follow the same patterns: -Get good (strong) at compound lifts, you only need a few. (think Barbell bench, squat and deadlift). Most people are beginners. Advanced (strong) people follow their coach or they'll figure out what's best for themselves. -Follow it for a set amount of time (see above).

1. S&S can be done twice a week if you want to do other things (barbells, bodyweight etc.)
2. The idea is simple, advance to the "Simple Goals" within the program so you get a good base. Your form is solid, your technique is great so you don't injure yourself. Do you want to do high-rep programs with light weights, metabolic conditioning, circuits or use heavier bells. Again, what's the goal here?
3. Things like GS training is no doubt good. But it is also more specific. A program that consists of just something similar to the Long Cycle is probably also enough to meet many peoples goals. S&S helps you prepare for it.
4. Reading forums for a few years have made me realize (and own experience tells me) that jumping from program to program is inferior compared to a tested program made by professionals. To quote Pavel: "Would you buy a Harley or a customized bike made by lawn-mower parts?"
5. Specifically about the Get up part: you're comparing apples and oranges. GU's are meant to prepare you for other stuff(it's also a very good lift for the entire body, my personal favourite). It also builds strength, tho not comparable to, say, a heavy bench.

More things should be said, but we are just repeating the same chant here. If your opinion is different then that's fine with me. In the end, experience, commitment and consistency determines whether you succeed with whatever you wish to do. Do it or don't, that's up to you.

If you want new ideas or program routines that you can customize yourself then I suggest you head over to www.rosstraining.com and get your hands on a copy of Infinite Intensity, money well spent but not kettlebell specific.