An SRK in SK5 is all anyone really needs in that platform. You can spend more money, but it's not going to improve the functionality. A decade ago I bought my first two in Baghdad. The reason was because the soldiers patrolling in and around the IZ and beyond were replacing their issued K-Bars with them. As for whether they are a decent survival knife, I suppose that depends on what you intend to survive. For what I had in mind, they were quite suitable. YMMV. There is no perfect knife, simply the one you have at hand. Acquisition can enhance versatility.

Nowadays, I edc the same old Leatherman Wave I had before I went to Iraq. It is still nice and sharp, and if it was all I had to get by, it allows me to do a lot of tasks in one small package. Except for hard core wilderness survival or combat, the Wave is really all I need to get by.