Good for them. That is amazing what they have done in so short a time. It surely is refreshing. I think everyone who makes candles can appreciate the hard work and sheer determination that took them where they are today. Bravo!
The lamp can't melt the whole jar at once. You are supposed to dump the melted wax out when the fragrance is gone then put the jar back under the warmer. Just be careful pouring the wax out. My Menard's AND Hobby Lobby both sell these warmers now and the bulbs. They are cheaper than on the site too.
$5.00 is not high for a candle warmer. I am not sure where you would find one cheaper than that. The Menard's and Hobby Lobby stores by me sell the candle warmers from candlewarmers.com at a very good price. They are quality burners.