Most entry level-crossbows do not come with a set of complete accessories and equipment like the $1000 models. Other than the arrow, target red dot, bolts and quivers, premium quality crossbows have much more. They have a sling to carry around shoulders, come with high quality and a large number of arrows that are very tough.
The entry-level crossbows have a fair accuracy and power but do not match the power, performance, and accuracy of the premium ones.