As much as Seth would have liked to, and god knows he would have absolutely loved to, he couldn't spend the entire day simply soaking in his magically heated hot tub.
He wasn't lying when he said that he had to wait for a particular piece to arrive before he could complete his latest project, but it might have been a lie to say he had to wait to start it. He could easily start it now, but the bath was simply too good.
Procrastination was such a vile temptress. It constantly lured him in to its comforting bosom and let him rest there for as long as he wanted, even if that was for far too long than a responsible adult should.