Depreciation differences between a Coupe and a Cab, I'm not so sure of. Experience differences, now that's a different story!
Having a 997 Cab you seriously wouldn't know you were in anything other than a Coupe when you're driving along with the hood up. I totally couldn't get over it when I first took one out.
So forget about the normal soft-top practical drawbacks, because there just aren't any as far as I have seen in the 997. The roof is nice and easy to maintain too - I just use a jet-washer with shampoo/wax mixer over the hood and keeps it immaculate, although I'm sure black definitely helps though.
The interior is pretty much the same as the Coupe in terms of the options I have, so no really differences there.
The only real difference in options is that you can't have the -20mm suspension in the Cab. If you buy a Cab though I don't think you will really need it as in all likelihood you won't be tracking it as much as you would a Coupe. The 'Sports' button does me fine when I want to have a bit of fun!
When you put the roof down in a Cab it really does turn driving into a whole different experience. SO much fun zooming around! I put the wind-deflector up for the first time this weekend. It really cocoons you in well, and hides you from everything but the glorious sunshine!! I live in the UK, so I don't think weather is really a factor unless it doesn't stop raining for more than 10 days of your year...even then I think it would probably be worth it
This is my first Cab, and I wasn't intending to get a Cab when I walked in the OPC dealership, but boy do I not regret my decision!! So don't do it for financial reasons, take a test drive and do it because of the way it makes you feel...
A few reposted 'triple-black' pics (I know, I need to take some more!):
