In terms of the question in the title, my opinion is it depends on your means and your goals. Can you afford high end gear, and you need to find out for yourself? Then absolutely yes, it's worth it. You can't get the experience of a Wizard or a SLO (for example) from clips.
Can you not afford it but you want to be one of the cool kids so bad you make poor decisions? Then no, really. Dollar for dollar, it's still hard to beat a 5150/6505 for recorded metal tones and live work.
Cost & value in the market is about the experience as a whole, and the actual tone is only one part of that experience. Example- $~1K amp vs. $~12K amp.