I suggest the following options:
Additional Window Over Sink (with blind) - Great ventilation and
light at the sink and cook top
Air Conditioner (8000 BTU) - Good for resale and warm weather
Bike Rack Ready - This is the 2 inch hitch on the back
Dual
Propane Pkg (2 - 20 lb OPD tanks, auto-change regulator & tank cover) - Nice to not worry about gas
Exterior 110v Outlet - Good for patio ligths
Equalizer Hitch (Installed) - Good if your TV needs it, mine does
Maxx Fan - A definite yes
Factory Tinted
Windows - Works well to keep privacy and trailer cool
Hitch Wheel - good if you want to push around a bit
Interior Shower Pkg. (6 Gal DSI H/W tank, 20 gal gray tank, full
fiberglass shower insert, sink with hand-held shower unit & holding tank moniter panel) - We've used ours alot
Exterior Shower added to Interior Shower Pkg. - Good for washing gear, dogs and your hands
Stove Cover (Add $15.00 for 3 Burner) - Equals extra counter space
12V / TV Outlet - We got it for the 12V plug but maybe someday we'll watch tv
We love our 2006 and we have the above options, I think they are worth the price.