Best - Deckert's. Cheapest? I don't know, I stick with Deckert's because of their fantastic customer service. Thanks for the reminder to order my scooter....
I agree with Malcon10t that Deckert's is the best. I have rented from them many times. I paid $135 the last time for like 3 or 4 days, I can't remember. I believe they give an AAA discount as well. Also they insure their scooter for theft or damage. The reason I mention this is because someone accidentally took my scooter and left theirs and I had to call both scooter companies to try and get it resolved. The keys on these scooter's are universal so beware. The other company came and got theirs and Deckert's came and brought me a new one. No hassle at all! And I wasn't charged either! And we weren't able to get a hold of the other renter as they weren't listed and a person staying at the hotel that the scooter was delivered to and they left their home phone number so, we couldn't contact them. So insurance and a reputable company is very important.