I would consider a tripod as an essential part of my photography equipment. They do vary massively both in terms of size, weight, quality, sturdiness, features and price but you have to consider that in relation to your equipment now and what you might use in the future. Prices start from as little as about £15 and can run into many £100s at the top end of the scale.
Unfortunately there is no simple answer here and its very hard to recommend a tripod for your use. As you are going to be using a small, relatively light camera, you should be able to get away with a lighter and often less sturdy tripod, if you look around and choose carefully, something from the cheapest end of the market will probably be suitable. The usual aluminium types will probably do and if you have not used any of the better models you wont miss what you have not seen. The problem as I see it is that if you get hooked on photography and upgrade from the A95 later on, it is also likely that you will have to upgrade your tripod at the same time. I personally hate having to sell something and pay out again for something that essentially has nothing wrong with it.
They are useful not just for steadying general shots but for use in the more creative areas of photography. Ever fancied photographing moving water, light trails, fireworks, lightening or doing indoor macro photography. These and many other areas absolutely depend on a tripod to get reasonable results.