I actually started a thread about these a while back.
I am a professional arborist and owner of a tree service so I know a thing or two about this.
First of all to the guy that had a crew bend his saws then bought coronas.... you will only bend a silky if you are trying to do it, Personally I have only seen it happen on a polesaw blade from someone being very careless... coronas on the other hand bend quite frequently and dull rapidly.... cheap to replace though. Also any tree trimmer hand saw only cuts on the back stroke and most are sharpened at three separate angles similar to the silky, cheap coronas only are sharpened on two angles and dull quicker and cut slower as a result.
Also to the guy that says you are paying for the name... this is simply wrong. There truly is not a saw on the market comparable to a silky and I and my employees have tried them all. When you are paying 80 bucks for a replacement blade (after a year of daily hard use) it is a bit tough to swallow and might make you want to try an alternative. Any time we have taken this approach we have regretted it.
Anyways, a silky is one of the best pieces of kit you ever have. For normal camping or around the yard use this is truly a saw that will last you a lifetime. The saw in my truck right now is one that I used for arborist work for over a year, it got a little dull for that so I got a new one. I put the old one in the truck and since then I have felled trees with it and cut literally tons of deadwood to make a fire. This saw is "dull" for a pro but whenever anyone else grabs it and uses it they are immediately blown a way and usually say something to the tune of "wow that is a ************ saw"
One more note; never cut toward your hand and never grab it by the blade! This is not your grandads bowsaw and it will cut the hell out of you! It is by far the most common injury in arboriculture and I have seen many a stitches go in and even seen one guy need surgery on his tendon, no fun!
Oh yeah last thing.... If you really don't want to pay for the silky the best comparable saw I have found is the samurai. Though it is a good saw and hardened steel it still will not last as long as a silky and I wouldn't buy one again... way cheaper than the silky and a world apart from the corona.
I have absolutely no affiliation but a great place to get good prices on both of these saws is treestuff.com for those interested.