Bart: "I'd like to upgrade my Siamese to an Abyssinian."

Clerk: "Do you want a red or a tan Abby?"

Bart: "I dunno. Is there a difference besides the color?"

Clerk: "Well, the red one is faster, but costs quite a bit more. Personally, I don't think it's worth it. The price/performance isn't as good as the tan one."

Bart: "Do you think I need that extra speed?"

Clerk: "Depends on what you're getting it for. Any big dogs near your house?"

Bart: "Yes."

Clerk: "Well then, you'd better go ahead and get the red one. Unless you want to save money and get the tan. The tan _is_ upgradable to the red later. We offer our "Red Dye Overdrive Kit" for $100. Seventy percent increase in performance."

Bart: "Let's go with a tan one."

Clerk: "Ok. That's gonna run you $400. What size litterbox do you have?"

Bart: "10x12 inches."

Clerk: "You're gonna have to replace it with a bigger one."

Bart: "Why?"

Clerk: "A Siamese litterbox won't handle the demands of an Abby. You need at _least_ a 14x16."

Bart: "Okay, how much is that gonna cost?"

Clerk: "$20. You're also gonna need a second water bowl."

Bart: "I am?"

Clerk: "An Abby tends to run hotter than a Siamese. A second water bowl will keep the cat from overheating: $10."

Bart: "I'll take it."

Clerk: "You weren't planning on putting that Abby in the same carrier as the Siamese, were you?"

Bart: "Uh...yeah."

Clerk: "Not a good idea. The Abby might not fit, and even if it does you'd probably want a bigger carrier for better air circulation."

Bart: "How much?"

Clerk: "$100."

Bart: "Okay. Boy, I'm almost buying a whole new cat setup."

Clerk: "Well, you can still use the same brushes, shampoo and cat toys."

Bart: "True. So, what do I do with the Siamese?"

Clerk: "We don't take trade-ins. Maybe you can sell it."