If you only visit your own bank or building society when it comes to taking out a mortgage you`re only going to be offered the deals from just one bank or building society. You won`t be offered a range of deals from the thousands on the market.
We can often be fiercely loyal individuals, take football teams for example, you wouldn`t change the team you support during the local derby just because the opposing side were odds-on favourite at the bookies.
Even when it comes to our weekly shopping, we tend to stick to buying the same brands we`ve bought for years and those are often what we saw our parents buy before us. There`s a sense of trust and of safety about the brands we like to buy.