I am a beginner to cycling completely. I recently purchased a 2011 Giant Defy Advanced in my size frame for $300(don’t worry I inspected the bike the thoroughly to make sure it didn’t have any cracks and chips) The entire bike seems to be made of stock components and works fine currently but I also don’t know sh*t about sh*t about cycling so would it be smarter of me to cough up the money to a bike shop to have them tune up where I’m assuming they will tell me to replace most of the components for the amount of use I plan to give the bike. Rather than to just order the components myself and learn the skills incase the hobby sticks snd I’m assuming will save me some money on the process. If I did have a LBS service and upgrade the bike to basic current upgraded components what do you think the estimate would roughly be?