I've always just used a roller and brush, but we have a new house and going to install a few cabinets (that will need paint) as well as paint a couple rooms. Considering getting a sprayer that I can use for a week and then can just toss if needed. Is there anything out there affordable that is good for a few gallons and then be done with it or will I hate myself for getting something cheap? I see a range from $18 habor freight compressed air/gravity sprayers to $1000 ones on wheel that are airless. Any advise appreciated.