I think that neither is right or wrong, and it all just comes down to opinion really. I like the look of the capsule, and I will be getting it super cheap. I've spoke with mothers who loved them, and mothers who never used them. We never had them and we were fine. Personally I have a very small car and will be easier to put a frame in the boot and the main part Stays with bub in the seat. The actual pram (not the capsule version) does not fit in my boot.
I was very hesitant because I did not want to buy something that I would just have to replace so quickly, but we plan on having a few kids so it will be worth it in that regard (not just used for 6 months, but 3 times that ...) and also the price of selling it will pay for the car seat.
We would have to get a second car seat for second bub anyway, so really not spending extra money.
Just go with what you want, there's no way of knowing what's going to be right for you until it is too late anyway (LOL)