I see the Tenacious as a "gateway knife". Good to get started but you'll soon be looking at other Spydercos (and better steels). The Resilience, Persistence, and Ambitious are all in the same family. Same 8Cr13MoV blade and G10 scales, and all are good values IMO.
The Spyderco Dragonfly 2 is another sweet knife. VG-10 blade, FRN scales, and right at the $50 street price. I'm also a fan of the Cat if you like a shorter blade (or your local laws require it).
Stepping up another $10 or so gets you into the Delica range. Great knives that have been the cornerstone of the Spyderco catalog for years (for good reason).
The Ontario RAT1 and RAT2 are also great bargains. AUS-8 and nylon scales.
I don't own any Kershaws but there are several at that price point that are popular. Others can speak to them.
But IMO the best "only one knife" to own is a Swiss Army (SAK). There's a lot to choose from for $50 or under.
The Spyderco Dragonfly 2 is another sweet knife. VG-10 blade, FRN scales, and right at the $50 street price. I'm also a fan of the Cat if you like a shorter blade (or your local laws require it).
Stepping up another $10 or so gets you into the Delica range. Great knives that have been the cornerstone of the Spyderco catalog for years (for good reason).
The Ontario RAT1 and RAT2 are also great bargains. AUS-8 and nylon scales.
I don't own any Kershaws but there are several at that price point that are popular. Others can speak to them.
But IMO the best "only one knife" to own is a Swiss Army (SAK). There's a lot to choose from for $50 or under.