300 Citaros is nothing as compared to 1100 K230UBs, so more
people will want more Citaros, especially it if fully low
floor.
Currently there are only 2 low floor models in Singapore being
purchased, Mercedes Benz Citaro and MAN A22. Since SBST has already
engage Mercedes Benz for new Citaros, it is logical for them to get
more Citaros in future. And Citaros are better than A22 because A22
has a crooked rear narrow aisle, which is even worse than the
Citaro. Volvo B9TL full low floor configuration is the best of the
3 but is a double decker chassis. 
As for SMRT double deckers, it is still best for them to
use double deckers. 
As mentioned by someone, feeder services will
have more stringent frequencies after the new QC
requirements. More buses on a feeder service means better
frequncies which means number of passengers in a bus will be
lesser. Thus it is useless to use bendies if they are not fully
utilised all the time, which in turn waste more fuel and road
space, and increase operating costs. And double deckers are more
suitable for space tight city roads and using bendies on city
routes like 190 are definately hogging other buses schedules
instead.
For both.
The decision is made by SBST. Send an email to them to see
whether they will want to continue purchasing Citaros instead of
posting here.
I still got to disagree with you about SMRT buying DDs. So if
let's say an SMRT service has DDs, for a period of time, the people
will say 'Wow! That's a new SMRT bus!", but they only sat/stand in
the lower deck (like service 95), which might led to problems
Also there are a few advantages of bendies over DDs. Most people
like to stand in the bus nowdays, even with DDs, they have lesser
standing space for standing, unlike bendies, there's a standing
space at the middle of the bus which helps the bus turn. Some DDs
may have higher capacity than bendies, but some do not. So what's
the heck to buy DDs if a company do not want to buy it at all?
Wouldn't that be a wastage of space, money and manpower?
