mosbarch-
The 14 is adequate if you anchor in sand, mud, gravel, rocks, and whatever with a good length of chain and adequate scope, all according to Hoyle and the textbooks.
However, if you can't always get the necessary scope, anchor in steep walled reservoirs or places where anchoring is difficult, or are basically inclined toward over protectiveness, the 22 is your peace (or piece) of mind anti-E-Ticket Rx.
I buy a lot of stuff on eBay, just to save money. Internet shopping pays off as long as you purchase things that are simple and not subject to malfunction or warranty issues. Many things can be found for half price if you invest some time searching.
I bought a virtually unused Simpson Lawrence Horizon Express 1500 brute of a windlass for my Sea Ray for $305 on eBay, less than half that of a similar Horizon 600 at retail: Twice the dice at half the price....works for me!
Be sure you ask about returning any defective item for a refund, etc.
Joe. :teeth :thup