If you switch to electric you'll wonder why you held off doing it for so long. There are very good reasons why the trend is clearly electric. To put off making the switch because you don't know which set-up to use is simply delaying the inevitable IMHO. Save your money and go electric...
Having said all that, some people like the noise and associated slime that comes with glow. Some people also like to wear out their servos and models excessively fast. Some also like to tinker and perform weekly maintenance on either the model or engine or both. I can understand the attraction..
Regards,
Jason.