Supporting my holiday habit

I've got what I consider to be a fairly obvious mileage earning/spending pattern: accrue lots of miles and tier points from expensive D/J business travel and then redeem on holiday flights which have historically been to the Caribbean. And even when we cannot get award seats we have often managed to find cheapish Z fares.
However, it seems that (a) there are now few/no award seats ex-LGW in Upper Class and (b) Z fares are rarer than a very rare thing indeed. For example, I've just looked at LGW-ANU in Feb 07 and the price is £3.5K.
Clearly VS can fill these seats with paying customers, some of whom are likely to be Virgin Holidays punters. But what of the Cat and the Kitten? At the moment it looks as if I would be better off putting my miles into BA (not exactly lucrative, but at least there are reward seats) or *Alliance if I want to maintain the Kitten in the sun-drenched luxury to which she has become accustomed....
What to do? [:?]
BC
PS. May go Lufthansa to Dallas in a couple of weeks (cheap business class) which might reinvigorate my interest in *Alliance... help!
However, it seems that (a) there are now few/no award seats ex-LGW in Upper Class and (b) Z fares are rarer than a very rare thing indeed. For example, I've just looked at LGW-ANU in Feb 07 and the price is £3.5K.
Clearly VS can fill these seats with paying customers, some of whom are likely to be Virgin Holidays punters. But what of the Cat and the Kitten? At the moment it looks as if I would be better off putting my miles into BA (not exactly lucrative, but at least there are reward seats) or *Alliance if I want to maintain the Kitten in the sun-drenched luxury to which she has become accustomed....
What to do? [:?]
BC
PS. May go Lufthansa to Dallas in a couple of weeks (cheap business class) which might reinvigorate my interest in *Alliance... help!