Try it, you'll like it! The key to deciding if you want to get into DCC is to read as much as you can about DCC. Forums such as this one, links to websites, on-line vendors websites, and other information can give you lots of information on what DCC is all about.
It may get a bit confusing but hang in. Take it in a bit at a time. Do some comparisons between analog and DCC. If you have some friends who have wired their layout or converted it to DCC, a hobby shop that specializes in DCC, a model railroad club that uses DCC, pay a visit to them and ask them all kinds of questions. And, try the "taste test" - run some trains.
Here's some links to my website which might help you out:
Some basic principles about how DCC works and a general strategy to consider when thinking about buying into DCC
http://www.railwaybob.com/Modules/WhatIsDCC/DCCWhatIs01.htm
How to Install a decoder into an Atlas loco (gives you some ideas about what's involved)
http://www.railwaybob.com/Modules/AtlasDecode/AtlasDecoderInstall01.htm
How to install some lights into a locomotive (some further ideas about what's involved)
http://www.railwaybob.com/Modules/AtlasDecode/AtlasDecoderInstall08.htm
How to get going with some Digitrax DCC equipment (gives you some ideas about what's involved in firing up a DCC system - but don't let the technicalities scare you. It's really quite simple).
http://www.railwaybob.com/Modules/AEmpireBuilderInstructions.htm
And a few links to online DCC vendors with some useful information:
http://tonystrains.com/tonystips/dccprimer/index.htm
http://www.loystoys.com/dcc-topics.html
http://www.digitrax.com/faqs.php
And a whole lot more that you can find.
If you don't have the skills or inclination to install decoders yourself into your locos, there's always someone around who will do it for you.
Locos that are advertised as being "DCC ready" may or may not be DCC ready. It all depends on how the loco is wired (usually through a PC board). Do some searches and you will find details of how decoders have been installed in specific locos and the problems that were encountered during these installations. And of course, you can always post your question to "The Gauge".
Bob M.