You can´t expect people in a forum like this to talk you out of aquiring a fine piece of equippment. But let´s try anyway.
Be adviced that having those tools is sort of adictive. Once you have one, you´ll devellop an urge to use it instead of asking for help. That way you´re going to miss opportunities to leave work to other people <img src="images/graemlins/wink.gif" alt="" />. Even worse you can´t idle while waiting for the people with the tools. I never needed one of those Waves. Well, at least until I aquired one <img src="images/graemlins/blush.gif" alt="" />. Now it´s probably the most frequently used tool I have <img src="images/graemlins/laugh.gif" alt="" />. That deprived me of excuses to buy a couple of other tools <img src="images/graemlins/frown.gif" alt="" />.