Sometimes Mac users after being in Apple-World for a period of time start wondering if they are really getting their money's worth or are they paying a huge premium for the MacOS & Apple logo. For performance computing perspective, specifially games, the Sept PC World featured an article on the top All-In-One computers (online link). Besides getting the best OS in existence, there is a strong argument from a performance standpoint, at least in this category you get what you pay for with a Mac, no rationalizing needed! 
Of the 11 computers featured, the Apple iMac overall came in 5th & 6th. (The group is split into 2 sub-groups, larger than 20" and smaller.) The number one computer was a Lenovo IdeaCentre A600 at $1149. The 24" iMac ($2199) was the most expensive, price-wise barely edging out HP Touchsmart ($2100) and the Sony Viao ($1999) however, it was the only computer in this group to receive a "superior" gaming rating along with the top benchmark of the group.
ALL of the other computers ranging in price from $1999-$550 only received a "poor" to "fair" gaming rating, with most of them getting a "poor" rating. Btw that includes the 20", $1199 iMac.
Of the 11 computers featured, the Apple iMac overall came in 5th & 6th. (The group is split into 2 sub-groups, larger than 20" and smaller.) The number one computer was a Lenovo IdeaCentre A600 at $1149. The 24" iMac ($2199) was the most expensive, price-wise barely edging out HP Touchsmart ($2100) and the Sony Viao ($1999) however, it was the only computer in this group to receive a "superior" gaming rating along with the top benchmark of the group.
ALL of the other computers ranging in price from $1999-$550 only received a "poor" to "fair" gaming rating, with most of them getting a "poor" rating. Btw that includes the 20", $1199 iMac.