We believe Adjusted EBITDA serves as an appropriate measure to be used in evaluating the performance of our business. We employ the use of this measure in the preparation of our annual operating budgets and in determining levels of operating and capital investments. We believe Adjusted EBITDA allows us to readily view operating trends, perform analytical comparisons, determine key personnel bonuses, and identify strategies to improve operating performance. We also believe Adjusted EBITDA is a performance measure that provides investors, securities analysts and other interested parties a measure of operating results unaffected by differences in capital structures, business acquisitions, capital investment cycles and ages of related assets among otherwise comparable companies in our industry. However, the usefulness of Adjusted EBITDA as a performance measure is limited by the fact that it excludes the impact of interest expense, depreciation and amortization expense, and taxes. We borrow money in order to finance our operations; therefore, interest expense is a necessary element of our costs and ability to generate revenue. Similarly, our use of capital assets makes depreciation and amortization expense a necessary element of our costs and ability to generate income. Since we are subject to state and federal income taxes, any measure that excludes tax expense has material limitations. Due to these limitations, we do not, and you should not, use Adjusted EBITDA as the only measure of our performance. We also use, and recommend that you consider, net income in accordance with GAAP as a measure of our performance. Finally, other companies may define Adjusted EBITDA differently and, as a result, our measure of Adjusted EBITDA may not be directly comparable to Adjusted EBITDA measures of other companies.
Similarly, we believe our use of Adjusted EPS and Adjusted EBITDA provides an appropriate measure to use in assessing our performance across periods given that this measure provides an adjustment for certain significant items, the magnitude of which may vary significantly from period to period. However, we do not, and do not recommend that you solely use Adjusted EPS to assess our financial and earnings performance. We also use, and recommend that you use, diluted earnings per share in addition to Adjusted EPS in assessing our earnings performance. Finally, other companies may define Adjusted EPS differently and, as a result, our measure of Adjusted EPS may not be directly comparable to Adjusted EPS measures of other companies.