I was down between the #2 (with cart, cover, cord hanger, rib hooks, and water pan) vs. the #3 (with cover, cord hanger, and water pan) and decided to forgo the cart and go with the larger smoker. Accessories can always be added at a later date but you can't add "size".
I have seen Steve offer some accessories gratis as incentives for purchase, and there is an email registration which will sign you up for notification on these types of specials.
I know this isn't the info that may clinch the deal for you but I'd absolutely recommend the #2 for your big splurge.