I have hover on many of my teleporters. It's useful in combat to get out of melee range, too. I also use my flight packs in conjunction with teleport in lag spike zones especially Grandville. Raptor packs are a dime a dozen.
Triumphant Defenders Forever
Psylenz FF/Psi, ArticQuark Storm/Rad, Symon BarSisyphus Bots/psn, Max VanSydow Thugs/Dk, Cyclone Symon Bots/stm, Blue Loki Ice/Cd, Widow 46526
HelinCarnate:OMG it is so terrible. I have the option to take 3 more powers but no additional slots. Boo F'ing hoo.
MM builds are very flexible. One of the things I love about them. I find pets these days very rarely get stuck so you don't need it for that reason but if you want team tp go for it.
Back in the day we had no Ninja Run, GVE Pack, or easily obtainable/purchasable flying/jump packs. Some of us also wanted to be able to stealth missions so Super Speed was often mandatory to meet that goal.
These days you can viably take no travel powers with the availability of alternatives now, and the Stealth IO assists in stealthing missions. So really, personal preference. Like you said, Team Teleport is awesome for a MM. Group Fly for bots, etc. Hover is nice combined with Teleport and you can "supervise" your minions from above. Whatever you like, go with it.
As posted above I've run into a bit of a quandary on travel power pools. Namely I was wondering how wise it'd be to take more than one.
Basically...when it comes to henchmen management...I love Teleport. Couldn't recommend anything else more. Especially Team Teleport when used with melee-oriented henchmen (which now consists of...all of them thanks to the AI bug introduced in I17). Recall Friend is also damned useful for when henchmen get stuck between walls or on railings. However as a travel power used strictly for getting from place to place...it's terrible. It's cumbersome, dangerous (especially when it's laggy) and sucks up endurance like nothing else. So I was considering taking a second one. Most likely Flight since I had to take Hover just to keep from constantly falling to my death using Teleport anyways.
So how badly gimped will I be for attempting this? Will it at least be managable? Or will the resulting performance gap utterly damn my toon?