FTM - should I buy a pram that caters for 2 babies in the future?

[Pastaallday]

Entered a whole new world of pram buying...we like the Uppababy Vista (overnight carry cot, light, smooth, can use for 2 babies in future...)

But do also like the oyster 3 and silver cross pioneer. Which don't come with the option of 2 baby seats....Should this be a priority if we are thinking of having more children in the future?

If I liked both I would by the one capable of coping with an expanding family.