My personal observation is that the Burgman 650 exec is not a popular bike in Singapore as compared to burgman 400 and Yamaha T-max.
IMO, it is not popular because not many know what goes under the hood of a B650.
Generally Suzukis in SG are underrated - Mostly only know Gixxer & Haya or DRZs. Previously on DL650 for more than 7 years. Good mileage per tank vs Torque as it is V-twin engine. When I explained more about B650 almost all those I talked to gave me a stunned look. Wow I didnt know it is like that one... etc)
IMHO I think it is due to T-max being more sporty and handles better and due to the almost-same-size of burgman 400 and 650, buyers will buy B400 instead of B650 due to its lower financial commitment and licensing requirements (Class 2A versus 2)
Besides the fact it is a good scooter & all rounder. Other important factor is peer pressure. Sports scoot for 2B maybe Xciting 400 that not all will accept Taiwan scoot. X-max 400 might be slightly over priced .. not to mention the new X-max 300. Rest are normal Maxi scooter which are generally meant for comfort transport.
But frankly if anyone wishes to upgrade FROM B650, he/she will surely face disappointment as I do because there is really no scooter to upgrade to.
Unless you enter the league of big touring motorcycles.
SRV850? Scooter too big a cc , fuel consumption will go down. Really want big bike should move back to manual bike...
Generally I feel you know what you need. Comfort, space, no belt... B650 is the one
Given the pricing range for B650 vs CG650T vs Tmax is around the same in SG's context....
So really see what you want in the end.. .Sports? Branded? Executive?
purely 2 cents worth...