My guess is that 740 could be close. I think number of Reapers is most likely less than more than that because larger the Reaper fleet gets, bigger Deus Ex device is needed from writers.
Tennessee88 wrote...
..snip.. Also look at the technology we have observed so far. Beyond Sovereign's brute force, everything they use is based upon the perversion of that which already exists. In fact it appears as if they do not produce anything directly. There is nothing cultured or without utilitarian value (their utility being reaping) that can be witnessed in the Reapers. No Art, no hints of any thoughts beyond achievement of the cycle, its almost as if they have reverted back to a primal state.
That is a good point. I have thought about lack of land forces and that we don't know if Reapers are capable for orbital bombing with their own technology. Then indoctrination, only way I can see Reaper being able to produce indoctrination device on their own is that they grow it inside Reaper hull... even then how they get materials required for device?
I guess they need indoctrinated slaves not only as cannon fodder and infiltrators/saboteurs but also as labour. It takes bit more than few husks when going against military platoon. So Reapers may need to put up manufacturing plants, even more so if Reaper vessels aren't capable of orbital bombing. They are also going to need materials. Doing all these things takes time. Reapers are likely horrifyingly effective but still, Prothean genocide took centuries from them.
I think it is possible that Reapers really aren't very adaptive to different situations and always rely on taking control of relay network. That would give them time they need.
Disconnecting enemies from ME relays doesn't only prevent enemy fleets from moving, but also disconnects every civilisation from information network. Turian Thanix cannon technology doesn't help Asari if there is no way to get information of that technology to them so they could use it in their ships or orbital defense platforms, whatever. Even everyone had Thanix technology how they would be able to compose fleet without FTL communications?
It might be that Reapers aren't capable for very creative thinking and that could be their achilles heel in ME3.