If you need your car on a daily basis, choosing cover that provides a courtesy car while yours is off the road is a worthwhile option. In fact it may be essential. have a think if what your life would be like, should you not have access to a car. Remember, the accident may not be your fault.
For a small extra premium most companies let you protect your no claims discount. However you need to check to see if this is transferable to another cheap car insurance online if you choose to move company at a later date.
Even if you have had a poor quote from an insurer previously, try them again as sometimes their pricing structures change.