Tyres are probably the least expensive factor in a landing...the brakes cost a fortune...
As an idea a brand new 727 main tyre costs about $700 and can be retreated about 7-10 times if taken off before it wears to the bead...break units last 2-3 months if you're lucky, two on each main wheel, $3K to overhaul and if you let them go beyond the limit throw 'em away, $8K to replace!