Well, sorry if my view is very strict, but that is due to the strict view at all here in Germany. I personally like adv Tech, but no player I met here would let you use it in a 3025 Game.
AS FOR vtolS.
Lets face it from the official VTOLs, only the LRM Warrior is a real threat in 3025.
Kestrel? Nice Punch but it has paper as armor, so that even a random hit would crit it (Even a Hussar is sturdier).
Karnov? Only a Transport
Planetlifter? Also Transport.
Ferret? Fast, but too light to be a real danger
Marten? Ok SRM 2 which can use Infernos But I would consider the Infantry the real danger.
THe old Star League VTOLs like the Cyrano?
Mostly used by comstar or downgraded, like mentioned, the downgraded cyrano is a real beauty but uncommon.
So is there really a need for the advanced tech? Of course if there are home brews, that might be different, but from the official point of view...