Check out the Da Buddha. At 150-170 its arguably the best whip vaporizer on the market and would last you a lifetime. They're made by 7th floor, and I've never seen someone dissapointed. I own its very similar big brother - the Silver Surfer, and use it every day.
Whatever you get just make sure that by "affordable" you don't mean "cheap". From what i hear the cheapos are real junk and you will be very disappointed with it. It seems to me that you don't get into the quality vapes until the $70-$80 range. And IMO if your gonna spend that much you may as well save up and get something nice. Happy shopping!
Da Buddha is the way to go. I too was new to the whole vape scene, but I am glad I made the right choice and went with the DBV. The reviews on this site are awesome, do your research.
Personally I have started using one called the Davinci and I love it. I just got it about 3 weeks ago. The heating element heats up fast, has two storage chambers and I got the longer straw which is awesome for just holding it in my lap so it can be hands free The Davinci itself was $250, and the longer straw they call a snorkel is $20. They got it to me fairly quick too. My friend has an Iolite and she likes it, but I didn't want to mess with the butane.She likes my Davinci a little more
I recently made the switch to vaping. Went with DBV. Vapes are expensive. But they're worth it. If the recommendations so far are above your price range, just wait a bit. Save up more.