I have several Opinels (one is my favorite apple knife) and Douk-Douks, SAKs and Bucks- price isn't what makes a knife worth having. None were bought just to inflate my collection- but they were bought to expand my collection. Every knife I buy is to expand my collection in one way or another- steel type, lock design, etc. I also have Busses, Fehrmans, WH and CRK- each one was bought for a reason and is either enjoyed or sold/traded.
On my want list are some Moras, Condors, ESEE, BRKT, a Lochsa, a Bagwell, and if I hit the lottery a Loveless or two. Why limit yourself or your experience because of a low price- these knives become classics for a reason.
One last example to make my point. My son wanted to get me a knife for my birthday last year. I didn't want to strain his finances, so I asked him to give me a Buck Vantage Avid. He could've afforded the Pro, but I've got plenty of S30V and none of the steel on the Avid, plus I wanted to check out "Dymondwood". I had seen the knife at Blade last year and thought it was a great design for that price. I really like that knife! I like the action and the feel in the hand and pocket, and it's a good, useful size. I've been using it for a couple of weeks on my patio, just being ruthless because I want to see how that steel holds up. I thought I had it pretty well thrashed, but after wiping it down good, it looked almost new- held it's edge well, too. I'm not sure my Sebenza would've held up this well!
Of course there's always different strokes for different folks, but for me collecting is a learning experience and a tribute to the past and an overview of knife design and purpose, and ....