Lots of great advice here! Lots of stuff for you to think about. My opinions:
I personally, don't feel comfortable at all buying stuff that I could not/would not trust my life to. I buy quality. If you are going to be subjecting this knife to any sort of hard use, you need to ask yourself some very serious questions:
a) How much do you value your life?
b) How good would it feel to have the extra X amount of dollars nice, warm, and tidy in your bank, while you're up @#$% creek without a paddle, or in this case, a knife. If whatever blade you buy goes out on you because you didn't spend enough, you're obviously going to curse yourself.
I'm being serious here, and I'm also not saying you need to spend $4,000 on a custom or something. But do buy the best you can get within reason. I'm not an expert, but from what I've read here, Strider and Busse are the way to go for the ultimate hard-use/abuse knives. Strider gives more bang for the buck, and I personally like their designs a lot more. I just got a BT, and other than the fact that it's a bit too small for my tastes, I LOVE it, and would not hesitate to trust my life to it, as they have been proven by many people in the field. There's a post here about how some soldier serving in Afghanistan saw a Strider cut the tail off a helicopter! If that knife isn't good enough for you, then nothing is!!!

Read the post here:
http://www.bladeforums.com/forums/showthread.php?s=&threadid=195316&highlight=strider+seal
I have to disagree completely with everyone as far as concealability goes. I have my Strider BT strapped to my calf right now, and no one can tell that I have it on! I have practiced, and can deploy it fairly quickly. I even tried it under dress slacks last night with success! I'm average size; 5'10", 165. So concealing the Recon Tanto wouldn't be a problem.
Sorry 'bout my long post, but ya gotta say what ya gotta say.
To sum up, I'd say go with a Strider. Do a little research on the forums here, and you will see that they are proven tools. I sure wouldn't trust my life to anything less. I do have a recon tanto as well, and it seems to be solid and well-made, DEFINITELY a STEAL at $50, but trust MY LIFE to it? Sorry, I'd reach for my Strider first!
Regards, and luck
Strati
drjones