Yes, we did go. DD#1 said she really wanted to go and she wasn't running a fever. G'pa (my dad) also said he felt up for a visit.
It's a 3-1/2 hour trip, so DD#1 slept the whole way there.
We pretty much did the gift exchange, a 2:00 feast of a dinner, then G'pa and DD#1 found comfy places on the couches in front of the TV for a long nap while G'ma, DD#2 and I had a real nice visit.
When they woke up we had a nice late supper and then relaxed in front of the TV (Carol Burnett Show!

) and early bed for them instead of the usual fun and games that we like to play 'til late into the night. Which was perfectly fine.
Absolutely no regrets about going, DD#2 and I loaded up on Airborne and Vitamin C. Neither DD#1 nor G'pa were allowed anywhere near the kitchen.
However we came back much earlier than planned (just got back 1/2 hour ago, planned on staying another night) because G'ma and I both agreed that the "sickies" needed to be in their own sick place.
It was a very nice visit.