First Time Essay Order Questions

Hello, I have been recently thinking of using a writing service to write my dissertation for me and have been using this website to seek out legitimate companies. Having extensively searched this site I have made a shortlist of 4 or 5 companies that I will get quotes from but have come across an issue that I need clarified. The dissertation in itself will be about 10,000 words which may cost a good bit of money, and I came across a post in another thread by the member 'pheelyks' who stated that you should never spend a massive amount of money on a first time purchase.

Is that good advice or should I go ahead and place an order anyway?