changed:
-$xxx      4
-$yyy      3
-$zzz      2
$300      4
$240      3
$180      2

changed:
-$0        before 9/24                            $aaa (on-time registration)
-$25       3 weeks before: (9/24 - 9/30)          $bbb
-$50       2 weeks before: (10/1 - 10/7)          $ccc
-$75       1 week before: (10/8 - 10/15)          $ddd (avoid this option, don't delay!)
$0        before 9/24                            $300 (on-time registration)
+$50      3 weeks before: (9/24 - 10/07)         $350
+$75      1 week before: (10/8 - 10/15)          $375 (avoid this option, don't delay!)

changed:
-DEPOSIT = $50 but paying in full in advance is a big help!; balance due upon arrival.
DEPOSIT = $50 (but paying in full in advance is a big help!) balance due upon arrival.