Gas stoves are the preferred choice of professional cooks for the simple reason that they offer more flexibility.

The heat adjustments are more accurate and instant.
If you turn the gas down, the heat will lower immediately, unlike an electric stove that will take time to cool down to the lower heat setting.

Gas stoves also allow varied cooking styles that aren't quite so easily achieved with an electric stove such as wok cooking.

Gas stoves give you the ability to fine tune the heat and with the use of a wok you can cook various different meals that wouldn't be possible with an electric cook top.

Many people are concerned with the use of gas in the kitchen and in particular the safety aspects of using gas.

There are certain adjustments that need to be made to your cooking procedures when cooking with gas, and in particular you need to be aware of the importance of avoiding contact with the naked flame.
The latest gas ovens have many safety factors built into them that weren't standard features several years ago.

Modern gas ovens have automatic ignition of the gas and safety gas cut off to ensure the optimum safety possible.

Another benefit of a gas cooker is the fact that they cool faster than an electric cook top when you have finished cooking.
For this reason alone many people consider using gas a safer alternative.

It is all personal preference but the ability to prepare better meals is good reason to consider buying a gas oven.

The prices range considerably, from relatively inexpensive to astronomical depending on the features that you desire, so it is wise to shop around before deciding on the gas oven for your requirements.