Why did Randy go to Costa Rica in home improvement?

Answer 1

Jonathan Taylor Thomas's departure

When the seventh season began, however, Mark grew into a teenage outcast who dressed in dark clothing, while Brad became interested in cars like his father and took up soccer. Randy joined the school newspaper, before leaving for Costa Rica in the eighth season episode "Adios." This was done as Jonathan Taylor Thomas wanted to take time off to focus on academics. His last appearance on Home Improvement was the 1998 Christmas episode. Thomas was unwilling to return to the show for the series finale. Tim Allen was upset with his dissision cause instead of Jonathan going to colledge he did some other movies.But later on he did go to colledge.Also Jonathan did agree to do the last episode in seaon 8 but he couldn't because other things came up like to much interviews movies...and more.(you can go on www.YouTube.com and search "Home Improvement E True Hollywood Story". And it gives you part 1 all the way to part 8 or 10).

http://en.wikipedia.org/wiki/Home_Improvement