To the OP, I was in your same position. For a long time I wanted a better splitter, more of the commercial grade, but that was a chunk of change to lay down for one. I had others tell it to get something smaller, for what I split each year (9-10 cord per year). Well this year, the timing was right, and the funds were there, and I jumped all over it and am glad I did. I only split for myself, but my dad splits, and well he's not getting any younger, and have told him if he needs to use it, he could. 2 main reasons for me, why I got what I did, was 1) having the log lift would save my back aches (I've had cryonic lower back pain, that nothing can be done to fix it, but I've learned to watch what and how hard I push myself) 2) time. I don't always have all the time to cut and split, so with this, I knew my time would be decreased, and I'd be more productive, I just didn't know how much. It turned out, it cut it in half. I used to spend all day cutting and loading the trailer, and then all day the next day splitting, and sometimes a day after that too. I'm not that old yet, in my 30's but I've learned to take care of my body so I don't have issues later on, and this was a big justification in my purchase of the splitter I got. Now I've had a few people ask me if I'd come take some stuff down and even offered to pay me, but they are close friends, that I'd do for nothing anyways.
Like others have said, if you have the money to spend, it's your call. I had it, and chose to get a big splitter (I got the Oak series from Bobby at
www.allwoodlogsplitters.com) and I'm glad I did, as everything worked out for me. If might take a long time to pay for itself, but if you look at what medical conditions and wear n tear on your body, I think you'd see that it would pay for itself much faster that just in terms of splitting wood and making heat. Just my opinion.
Just be sure, if you do get one, be sure to post some pics of it and write up how you like it and so forth!