Always with Thousand Trails or Encore ...book as far in advance as your program will let you.

especially in fall and winter.. summer not so much so.. if you are Thousand Trails it bookable, for me 180 days out.. if you are retail they usually have space on last min type deals.. unless there is a big convention at times.

Always at Thousand Trails!

For TT, in the shoulder seasons Yes, depending on how long you want to stay. I am thinking paying retail it is more availability.