My finance and I (and our family and friends) live on the East Coast. We are getting married in Vegas and paying for the wedding and reception ourselves. We are also paying for his grandmothers airline ticket and her hotel room (and his mom is staying with his grandmother, so we are essentially paying for her hotel room). His mom and my mom wanted to throw a welcome party (which is $1000 total). They decided to split the cost, but I'm paying my mom's half because I've been married before and she helped with the first wedding so I didn't want her to half to put any money at all into the wedding.
My question is do we need to get parents gifts. They are paying to fly to Vegas (although noone is paying for hotel rooms) and his mom is paying $500 for the wecome party. However, they aren't spending money on the wedding and we are in our late 30s so we've been on our own for quite some time. Thoughts?