while I find your opinion matches mine in all other aspects I have a problem with the above statement. The RC (200/390) are not comfortable on the highway at all thanks to its racing inspired seating. Especially when compared to the duke. If you have a range of 200 odd Kms on the Duke in terms of comfortable riding distance then on the RC that range effectively drops to 100 odd kms. More frequent pit stops and wrist and back pain from the seating position, cramped knees will be your biggest problems with RC bikes while on the duke thanks to its more upright riding posture you'll find that the above mentioned problems are felt less or not at all depending on your individual stamina as a rider.

I am in a similar confusion, the difference being 190 cc.
Yes I have decided to pick up a KTM 390 and confused between a Duke and a RC. I could not find any thread for the same and this was the closest thread to my requirement. Well I have read all the comments here but still looking for your opinion. Mods kindly shift this to the appropriate thread if I have posted in the wrong place.
A few points about myself and my requirements:
1. I'm 168 cm in height and 88 kg in weight.

Same

2. I spend only half the year in India (4 months at a time) and for the 4 months I'm away there's no one to use the bike.

Same

3. All 4 KTM's are within my budget (including the fuel costs).

Same

4. Though my choice is between the 390's, I know there are some people who will insist on getting one of the 200's. Your opinions are welcome too.

Owned a 200 for 2 years, now moved on to rc390.

5. My primary use will be leisure riding. Most of the time evening rides from Margao to Colva or Benaulim (for those who are familiar with Goa) and maybe the occasional 100 km ride.

Same, just that i tour a bit.

6. I do not intend riding to Ladakh or Kanyakumari nor do I intend carrying my entire wardrobe, fridge, TV and microwave on the bike.

On the contrary, i want to. just that i travel light.

7. I do not intend doing any sort of stunts or racing on the bike (In any case Goa does not have racetracks)

Same, but want to do a trackday.

8. I will be having a pillion rider most of the time.

same

9. I do not have a problem with a crouched position, hard seats or stiff suspension (I'm a cyclist and ride a road bike).

Same

10. I would like to use the bike within the city sometimes.

Same

11. I currently ride an Enfield 350 standard and an Activa.

Used to ride duke and have a jupiter.

12. Previously I have owned and extensively ridden a Yamaha RD 350, Yamaha RX 100 & a Hero Honda CBZ (1st Gen).
13. I enjoyed the Yamaha's more than the other bikes. I like to rev the bike a bit.
14. I have ridden the Duke 200 when it was launched and a friends re-mapped Duke 390 recently. Still waiting for the dealer to give me a Test Ride on all 4 stock bikes back to back. They have promised me a Test Ride on the RC 390 tomorrow.

Replies inline.
Go and get rc390. Its fun, precise and fast. Most guys crib because of the riding position, but we cyclists make do with a lot less seat and similar or more committed crouching position without any thigh support. I feel you should do well with a RC390.

We are all "cyclists" here brother but what is true is true. You can't do long distances on an RC.