I won't be setting up subversion on the current server, but maybe a new one sometime in the future. I no longer allow SSH access on this server, so it would be kind of pointless.
As for VPS and dedicated, yes and no. I'll probably start VPS plans sometime in the Spring, but I'm still unsure about dedicated. I don't own the datacenter and wouldn't offer a managed solution, so I would basically just be reselling dedicated servers if I offered them. Doesn't really help me or the customer.
ZenSix is growing pretty fast and WF is pretty much the only place I've advertised, so I'm in no hurry. Sticking to basic shared plans has been working out pretty well so far... it helps keep the costs down and we can normally get all tickets answered in under 15 minutes. I like that.