so i was planning to get the boulevard. but because of my pregnancy brain, i saw that another site was $20 cheaper so i bought it from there. turns out, it was the MARATHON! ddoh! i read that the main difference is the head piece - i think boulevard is a little thicker for impact.

would you go through the trouble of returning the carseats for the boulevard? plus, i got the 10% completion discount on the marathon, which i'll be losing so it's more than $40 (had to buy 2)..... or would you just keep the marathon?