I'm looking at going for either VPS or dedicated hosting for a few websites (a mix of Wordpress, Joomla and custom Ruby on Rails). Traffic is likely to be low to medium.
I'm confused about memory on VPS. Most of the ones I've seen start at 128MB going up to about 512MB (at prices approaching those of dedicated servers). Now, to me, that all sounds woefully low for a server. If I was getting a dedicated server I'd be looking at a gig at least. Is there something I'm missing?
I've seen reference to guaranteed versus burstable memory. I presume burstable means my server can take up to that amount for a short time but only if it happens to be available on the host - no guarantee. Given that traffic to my sites is likely to be bursty should I be paying more attention to the guaranteed or the burstable level of memory?
I'll be running Linux, Apache, MySQL BTW.