Single to double stroller for first baby

What are your thoughts/tips on the stroller for the first baby? We plan to have at least one more child, but are playing it by ear as to when we would try for a second- no intentions on a 2 under 2 situation. Is it worth going ahead and getting a stroller now that can convert to a double later(considering the Silver Cross Wave 3). We plan to invest in a more costly stroller bc I want it to hold up and plan on using it a ton, so it seems wasteful to get a single stroller only to then have to buy a double in a few years when baby number 2 comes. Thoughts?