onboard this summer. here's our alison kosik on "on the go." >> 2011 started out hot for the cruise industry. >> people were going to cruise. the cruise lines were ramping up the prices. and january proved that to be true. >> but then bookings stalled. >> all the turmoil in the mediterranean scared off americans and they stopped booking. and what that means is there are some deals out there. >> but don't go by price alone. >> make sure you are on a ship that fits your personality. if you pick the wrong cruise for you, and if you save $50, you know, you have not only wasted your vacation but you have wasted your money, too. >> and budget for the extras. >> there are lots of things you can spend money on, casinos, shore adventures, all sorts of things not considered part of the cruise price. even diet coke. >> these incidentals can add 50% to your base fare. >> plan a budget and just have fun.