What’s a reasonable amount to spend on a pushchair/travel system?

I woudn't spend too much on a travel system as they grow up really quick. All my prams were bought from the market place and I went thru 3 of them. The one with a basket when he was a newborn, that lasted 5 months, then the one that faces me. That lasted a year. Then the last 1 that i still use now that faces the road. All of them are 2nd hand from the marketplace and are still going strong. I think £1200 is too much, I'd rather put that money in a car.