In most situations, we believe everyone should buy and build their own SC10 Kit. Ready-To-Run's (RTRs) are nice if you want instant gratification, but building a kit sets you up for long-term success. When building your kit, you will learn the intricacies of your vehicle - replacing, repairing, and rebuilding your SC10. While you can always rely on your LHS to help with repairs, you don’t want to be clueless when the LHS is unavailable.
Most local hobby shops prefer to sell the RTR versions, mostly because they can offer more competitive prices and they are easier to sell to someone new to RC. The problem is that RTR's allow you to skip the valuable learning experience of building a kit. If you don't think you will enjoy building your RC car, then this sport may not be for you. Repairs and maintenance are large part of RC and someone who dreads taking apart and rebuilding their Truck will lose interest quickly.
The one reason you should buy a SC10 RTR is for the cost savings. RTR's bundle multiple products together (vehicle, controller, ESC, motor, etc.) making them cheaper than buying separately. However, RTR kits usually come with cheaper accessories than could be bought separately. If you are on a budget, then the SC10 RTR version will get you on the track for less cash.
Overall, buying a SC10 Kit (if you can afford it) and building your SC10 will provide you with a better performing truck, as well as the knowledge to tune and repair your SC10.
View our SC10 Beginner's Buying Guide for our suggestions and pricing on solid SC10 setups (RTR and Kit).