This is my VERY humble knife collection. I don’t have much fancy/expensive stuff like you guys, because I’m young and just getting into the hobby.
Here are my springers:
Fixed blades:
This is an old one I found at a garage sale, worth anything?
I also have a lot of small ones, not worth mentioning.
Please understand I say this to educate, not to belittle you, but these are not good knives. The steel is poor, and I personally wouldn't trust the locks of these not to fail and send me to the ER for stitches.
The good thing is that you don't have to spend much more than you've spent on these for decent quality low-end knives. There's a number of Chinese companies that produce them, such as Civivi, Artisan, Kizer, Ruike, and Tangram, to name a few. Unfortunately there's also a number of unscrupulous Chinese companies that blatantly copy designs, trademarks, and patents of respectable companies. I'm not going to list the offenders, but any search for those names here should let you know if they're clone companies or not. And of course, you can always just ask us. Plus there's a number of American and European companies that have budget lines (again, made in China, most likely). Kershaw, Steel Will, Spyderco, Buck, Cold Steel, and others. Kabar has a few folding knives in AUS-8 (such as the Dozier) for about $20 that are very well respected for their value and quality.
Knives from those I listed above should run $25-45, depending on the company and materials. Most everyone here will agree that it's far, far better to save your money, however little it may be and how long it may take, so you can buy a single Kershaw in 8Cr13MoV or 14C28N for $30-45 rather than 2 or 3 $15 Mtechs, Tac Force, and the like. Quality is far better than quanity. You mentioned the Kershaw Link, and that's a good choice. $45 for a knife that will last you many years rather than a cheap knife that's essentially disposable with questionable safety. There's the old adage of "buy quality and cry only once", particularly apt when it comes to tools of most any kind. Plus, when it comes to knives, as I'm fond of saying, buying a more expensive knife will always be cheaper than stitches at the ER (not to mention the pain and possible permanent damage) because you saved money on a knife with an unsafe lock. The good news is that you don't have to spend a whole lot more money for a safe knife compared to a piece of junk.
Welcome to the addiction.
EDIT: The Parker might not be too bad, as eisman said.