Lots of people use the reusable oil filters and speak well of them. The question about whether it's worth the money is easy.
The K&P is $139 US, that's $173 Au. How much will you pay for a standard filter? How many filters add up to $173? How many kms is that? How long does it take you do ride that far? My Kawasaki filters are almost $20. That's about 9 filters and I change them at 5,000km = 45,000km to pay for it. I will be swapping the bike before then. I've no idea how much an Indian filter is but I can't imagine them to be out of range of any other filter. Whether it works as well as a disposable filter is another matter. I remember in my teen years there was a guy going round the country shows with a reusable oil filter thing that used a roll of toilet paper as the element. The oil passed from one end to the other, working it's way between the layers. Of course he spoke very highly of it. I suppose the fact that he could drive his demo car to the next show was proof that it worked.
From Woodrising (no, nobody else has heard of it either) Rides a Springfield Dark Horse