An Anchor For All Occasions....
"Faith,"
Go ahead and mount that anchor roller. At the VERY least, you'll be making the pull mostly horizontal rather than the directly vertical pull that gives us all lumbago. Being able to sit and pull makes a big difference, provided that you pull with your ARMS and ABS and not your back. I'm no expert but I spent many, many years in ballet class learning the mechanics and anatomy of the human body. Your lower back should only be used when perfectly upright such as standing or walking. Those muscles are T-I-N-Y and not at all designed to take a strain. Just as we've all heard "lift with your legs, not with your back," so it should be "weigh anchor with your biceps (and abs), not with your back."
Regarding spending "too much" on ground tackle, you don't need to spend too much, just "enough" to make sure that you're covered in all possible cases. WHERE you sail and the bottoms of those locales determine that. Having briefly reviewed this entire thread, I see that many people refer to the Practical Sailor test, but there is also a test that was done on Puget Sound by the American Sailing Assoc. in 1995. ("On June 17 and 18, 1995 the Safety at Sea Committee of the Sailing Foundation conducted anchor tests on five selected sites on Puget Sound. The tests were co-sponsored by West Marine Products and attended by their representative, Chuck Hawley. Also in attendance were Portland naval architect Robert Smith who has written and tested anchor behavior extensively1, and Andy Peabody of Creative Marine who markets the MAX anchor. Diving services and underwater video were donated by Dwayne Montgomery of Emerald City Diving.")
http://www.ussailing.org/safety/Anchor/anchor_study.htm
(Other studies are available on this website as well, and I recommend them as good reading to all.)
Other sources include the Pardeys and Nigel Calder. Both have tables in their books relating wind strength to anchor size and holding power. Being a firm believer in the laws of physics, I feel that these are definitely worth reading.
Despite the Puget Sound study confirming that the bruce has the LEAST holding power of the "mainstream" anchors, I opted for a 22-lb (oversized) bruce as my working anchor. The wind-pressure/holding-power tables will show that this anchor is OK up to about 750lbs of pull. On an Ariel, this means a sustained 70- to 80-knot wind. I can say with all honesty, that if I ever encounter a sustained 80-knot wind, I hope I'm at sea as far from land as humanly possible! Additionally, the Puget Sound study "confirms" (as much as is possible) that you just can't beat a bruce's SETTING record: 97% on the first try. Plus, 22lbs just isn't THAT much to be hauling on compared to a 45-lb fisherman. :) Lastly, I had a 22-lb bruce on my first cruising boat, a Paceship 26, which NEVER ONCE let me down despite that boat's infinitely greated windage.
On other boats, the couple that introduced me to sailing used as their working anchor (on their 57-foot gaff-rigged schooner) a 65-lb fisherman. They have cruised the Bahamas every winter for the last 20+ years and claim that it has never once let them down, unlike their CQR which they claim has dragged on numerous occasions. Given the rocky/coral bottom of most Bahamian Islands, I am not at all surprised.
In short, the money spent on ground tackle (I feel) should not be spent so much on EVERYTHING as it should on THE RIGHT THINGS. If you've never seen a rock on the bottom, no need to have a bruce or fisherman and all-chain rode. Get a danforth and some 1/2-inch nylon and sleep well! Contrarywise, if you intend to spend half your time in the tropics, 1/4-inch all-chain rode and a bruce or fisherman should be the mainstays of your repertoire.
And there, for what they're worth, are my opinions. :)
Jeremy