i would......even if you time your shopping trips so 2.5 yr old wont be there long, what about day trips out with the family, markets, picnics, soccor games etc - you dont want to be restricted with the time you are away from home, or even worse, be pushing a pram AND carrying your 2.5 year old (i think we've all been there).

There are plenty of reasonably priced tandem or side by side strollers under $150 these days, that a) will last the distance b) do the job. You dont need to spend $600+ on a pram.....thats my opinion anyway.

Good luck !