@nitinkhanna there's two sides to that coin:
- Jailbreaks are harder to come by these days as the OS has gotten significantly more secure
- Apple added most of the reasons for jailbreaking to iOS directly, making the motivation small
The only I reason I did it back in the day was to unlock my iPhone 3GS, this being before Apple and AT&T offered the capability. Because I used a modified iPad bootloader to do it, it made my phone painful to upgrade for almost two years.