Well, I'm new here.... but heres my take on the idea that a cruise is not good use of points.(from what I have gleaned from the forum)
The example above, 410 point cruise.... those points can be rented at $10 per for $4100. (if you feel like doing it)
The same cruise (I just checked)can be booked thru
DCL for $2980.08. That includes EBD, but not Ins or Transfers.
So, you could rent your points, and come out $1100 ahead by paying for the cruise with your points income - or upgrade to better cabin. etc.
Now, with all that being said, I still look at purchasing
DVC with every intention of taking a cruise every 3rd or 4th year. (and as of this time, don't think I'll be doing the rent points/pay cash thing)
Of course the cruise prices in points are not fixed, and they do go up. DW took my 2001 guide to work, but seems like the above cruise has gone up about 50 points in the last 2 years.