If the car is new the clutch should be warranted for 12K (typical for most mfgrs). We have a 2012 Mazda5 6-speed with no options except floor mats and bumper guard. We got it for $16,500 as I recall (last Feb.). We asked dealer if he could find us a leftover 2010. He said they didn't do that but then made us an offer we couldn't refuse on a 2012. I think it came out to 18K with tax title etc., including our 2000 MPV as a trade.
The car now has about 10K on it. It uses 0W-20 synth. oil, which can be expensive. We've noticed it uses a quart of oil between each oil change. Mazda says this is "normal". It is likely (IMO)due to lightness of the oil. Not too concerned at this point but had dealer document it.
Overall we love the car (best mileage 34 MPG on a trip, 25-27 MPG avaerage). Minor gripes: No water temp guage, wife can't see odometer, gas guage or low gas light due to steering wheel position (she's short). She ran out if gas once. Very comfortable and fun to drive. Car is very peppy with 6-speed. We have 8 and 12 year old boys, and they have plenty of room. May not be the best choice if you have > 2 kids, since cargo room will suffer. Best bang for the buck IMO. Is long as you are good with a stick shift I wouldn't worry about the clutch.