I agree that that's a nice coin! Walking Liberty Half Dollars are a pretty popular series among collectors (or at least that's how I perceive it). It also looks like it's a pretty valuable coin too! Check out this link to find old auction results for other MS66 1941-S halves: <http://www.pcgs.com/auctionprices/details.aspx?r=6613&v=&dv=1941-s&pf=ms&c=733&g=0>
ah here's your coin pics... link: https://www.ngccoin.com/certlookup/4332240-003/ NGC price guide - $1,550.00 not sure how accurate this is ? NGC census population - 244 of this grade.
Wow if you bought that raw & submitted it I'd love to know what you paid. Anyway looks a little weak in the obverse center, (not trying to be a downer) but still a really good looking walker.
Is it a rare coin? No. 1941-s half dollars are common. Is it rare in THIS condition? Yes absolutely. It appears it was recently graded as well which is unusual. I would say around a $900-$1050 coin.
That is quite a nice Walker. S mm Walkers are especially notorious for weak strike. Coincidentally, I just bid and won a 65 '41S 2 days ago...just over 8M mintage.