For some of the eleven classes, I am only interested in two of the three possible specializations because the RP/personality flavor of one of the specializations doesn’t appeal to me. For those classes that do have three specs I think I’d like to play, I already have a dual spec’d primary character for the two specs I find most interesting and a single spec’d secondary character for the third spec. By now, I am sufficiently well-attached to those secondary characters that I’m not much inclined to delete them and tack the third spec on to the primary character. If triple spec does eventually go live — whether it’s in Patch 5.3 or not until the next expansion — almost all of my characters will stay as they are.
Although some of them have not always had the same specialization that they currently have, my Mages are exclusively single spec’d. I don’t think I’ve even purchased the dual spec option for most of them. Now, however, my Blood Elf Mage is poking me and saying “hey hey triple spec me Arcane/Frost/Fire, and then you’ll never need to bother with any of those other Mages again”. Poor Kaelinda, I think she’s probably jealous that Kinevra burned to 85 while she has languished in Outland for well over a year (perhaps even two).
My Dwarf Elemental Shaman is still too low-level even for dual spec, but I’ve been having trouble deciding whether to pick up Restoration or Enhancement as her second spec when she gets to level 30. Triple spec would solve that problem (assuming I could scrape up enough gold to pay for it on that server), and it might aid her quiet campaign to become my Double Agent.
Only one of my characters would be truly excited to have triple spec. Karaelia, my Tauren Paladin, has been a dedicated Prot/Holy Paladin from the beginning. Although she had no intention of ever giving up one of her two chosen specializations for Retribution, she still chose the Greatsword of the Sunwalker from her level 20 SFK weapon quest because that 2H sword has a completely unique design, whereas the 1H maces with stats appropriate for a tank or a healer are identical to a mace that drops in Sunken Temple. So Karaelia would leap for joy and eagerly pay whatever gold cost was required to pick up a third spec and be able to put together Retribution-flavored Transmogrification kits featuring her Greatsword of the Sunwalker.