I have a Shaver HD-10 I picked up on Craigslist, I think for $1500. Has the hydraulic tilt, and included both the 3-point mount and skid loader mount. I might need to eventually buy a new rod (slight pitting on it), but it doesn't leak and works fine so perhaps not.
My first fence was 1 acre, I drilled each post with my 3-point and set, then tamped in. It took forever. To this day (3 years later?) the posts are still loose. Driving a post now, it is instantly set in the ground FIRMLY. Pointed posts do help, but are not required. In the hardest clay, the 4" auger or pointed posts may be a necessity, but it'd be worth it. I wouldn't go any other way. It's tough to keep around as it's something you rarely use, but I got it so inexpensively I can't get rid of it.