It hasn't arrived yet, but I just ordered a DOVPO E-LVT 2.0 from Fasttech. It's only ~$53 (or $70-90 if you want to source one domestically and save some shipping time), pushes 30w, and claims to be able to fire at .3 ohms.
I've been wanting to get into RTA's and sub-ohming for a while, but my budget is very tight and I simply don't trust mech mods (more accurately, I don't trust myself to be diligent enough with battery checking/changing) and my lifestyle is much better suited to something that I can easily top off with a USB port. I also can't be bothered to carry around spare batteries, so I prefer regulated devices that will deliver consistent performance across the battery's entire effective discharge cycle.
This is the first device I've seen that will deliver the power and current I want while offering the features I need (protection circuit, USB charging, regulated power delivery) for a price I can afford. The fact that it offers a durable form factor is even better, and will undoubtedly save me tons of money and headache (I've personally broken 2 MVP's, an eVic, and a handful of lesser e-cigs in the two years I've been vaping).
When it arrives (anywhere from 5-175 days, knowing Fasttech) I'll play with it for a couple of days and post a review. The device is quite new, and there aren't many reviews available for the 2.0 yet, but it's predecessor (which appears to have an identical exterior, but was limited to 15w and 1.5 ohms) has excellent reviews for durability and performance in it's class, so I'm hoping that DOVPO has continued their trend with the 2.0.