The 1928-P Lincoln Cent is very common in all circulated grades. It is also fairly affordable in MS65 condition or lower. In MS66 condition, it begins to command a significant premium over MS65 prices but there are still hundreds of examples in existence in MS66 condition. In MS67 condition it is more difficult to obtain and commands a significant premium. Anything grading higher than MS67 is usually for very dedicated Lincoln cent collectors and expect to pay a significant price for any example in MS67+ or higher.