probably more money as well. The guy came out of the shop toting one in each hand. he was built like a football player. i could barely lift one. my 65 year old back is still sore 5 days later. Just muscles I think (& hope). One reason is my built in TV is A/C only so I have to use an inverter and I want it to last awhile without having to run a genny. I spend winters in Mexico and power down there is iffy, & my surgeguard cuts it out a lot. When you can buy 1st run movie DVD's in a street market for 30 cents each, we watch a lot of them in the eves.