Need advice, may change order

[Prof]

My wife has a X5 35d on order. Her options include the following:

Heated front seats
iPod and USB adapter
Premium Package
Technology Package
Trailer hitch

She now is considering adding the comfort seats and rear climate package and wanted some feedback on the options. We live near Dallas Texas. She hauls two dogs in the back seat. She was concerned that the standard windows had no tinting and if she had the windows tinted that it would not hold up with the dogs saliva. So she will probably add the rear climate package but was wondering if the window shades rattle. The rear climate package would also help to keep the grocery's cool if she puts them on the floor.

She was also wondering if the extra $1300 for the comfort seats are worth it.

Thanks for the feedback