An all purpose is just that, all purpose. Its okay on the flat, and okay for jumping and even trail riding. You can do it all with one of those, not only that, but if you find you really like jumping, then once your a/p wears out, you can buy a jumping saddle and go from there, and if you like the flat better, get a close contact or stick with an a/p.
Yeah, I think I might buy the Abetta for money purposes. If I save enough money for the Wintec, I'll go with that, so I can get a better fit. I'm sure my horse will be super easy to fit though. He's one of those universal type.