Cars Q&A

I am looking for a new car (with overall budget less than 5L). I have shortlisted Alto LXi and Wagon-R VXi. I am planning to maintain the car for not more than 4/5 years. I am in a confusion right now. The dealer is offering me a cash discount (16K on Alto and 30K on Wagon-R) if I purchase in December. He is not ready extend the scheme for Jan 1st week. Also he is saying that the prices are likely to go up in Jan (from all manufacturers). I have heard that at the time of reselling, the year of purchase matters a lot. So if I purchase a car now (i.e. Dec last week), I will get a big discount but will loose on the reselling part. so I just wanted to know about the details of difference in both! Whether purchasing in Jan will increase my resale value or getting the cash discount is is beneficial? Thanks in advance... -- VB