Double push chair??

My brain is all over the place and this seems to be the thing keeping me up this morning.. so after some honest advice please! I have an icandy peach 7 and my LO will be 19 months when baby is born. We currently use a lot still, and she does still nap in it. It can be transformed into a double which I love! But the part (frame) required is £270 🫠 - meaning I can zip the fabric of the bassinet onto the frame, but it doesn’t come with any fabric/ another seat once baby 5m+ and needs to change to seat part so again if my LO is still using I’d then have to buy another seat when the time comes. Just to buy the adapter so can put car seat and the seat on is £70 which I’ve decided I will probably buy. I like the fact I can clip the car seat onto it as I used it sooo much when my LO was young as she’d always fall asleep in the car. So my dilemma is, do you think the extra part to have the frame for bassinet is worth it 🙂 I did use quite a lot when LO was younger. But my thoughts are baby can just go in car seat/ baby carrier. Or if on a longer walk, I can swap the seat for 19m and put bassinet on instead. Then LO can walk, or ride bike etc. LO goes to nursery x4 mornings a week so a lot of the time will just be me and baby. Sorry if I’m rambling I just don’t know what to do 😂😂 a decent fold down double is about £300 (so I’ve seen on TikTok) which I feel I will probably end up buying eventually. But you can’t clip the car seat into them, and the lay flat option doesn’t look as comfortable as obviously what I’ve got now, and they’re all outward facing which I don’t like for a new born. So long story short I guess, how much did you use a double push chair? Is it essential or did you find older child was more than happy to walk/ play. Also happy for recommendations on what you have/ used. Please and thank you- thanks for reading😂😂😂