I had a Realistic Pro-2004 that is beyond repair. I am looking at purchasing a new scanner. Regretfully, the new scanner lingo is new to me. Triple-Trunking, Digital, etc., All these are new terms to me. Should I be looking at digitals at $500+ or a cheap (But customer highly ranked) Pro-433 at $119. I don't want to buy something and have it obsolete in a year or so. Thanks for any replies