Its not a fun job. Ive had several employees that left working at a videogame store for working at a bug tester place (THQ, Vivendi, TDK) and only two out of seven people liked it. Usually you play pretty bad games (Muppet Party Cruise, Tonka, etc) for MONTHS at a time.
The plus is the pay is usually $9-$11 hour, plus you get massive overtime (were talking pulling 80 hours a week!) when a game nears its release date.