Shimano MTB groups low to high:

Tourney: "Look at this great cheap bike I bought on my trip to Vietnam!"

Altus: "Dad bought me this bike so I wouldn't be late to basketball practice."

Acera: "Wouldn't it be great if we bought bikes for us and the kids and then went cycling around the park like my family did when I was 9?"

Alivio: "I bugged my mom for a nice new MTB for my birthday."

Deore: "I worked all winter in the pizzeria to earn the money to buy this bike."

SLX / Deore LX: "I have a real job (and a mortgage, and ...)"

Deore XT: "They pay me way too much at work."

XTR: "Don't touch the bike - my sponsor doesn't allow it!"