Interesting thread. I also made a King size as a 1st quilt, not knowing any better! But then started sending Q&K size to a long arm quilter. Have made every size from miniature to too many K size.
I simply ran out of room. Our retirement house is small & there's no room for more quilts.The DDs & Grkids all have a couple each.I usually make sofa throws & miniatures.
If I'm asked about making a bed size quilt, I 'm happy to do so, if they want to buy fabric & send to a long arm quilter.No one has took me up on it.
Quilts are not cheap,but ppl are really amazed when they figure actual cost.