I always get very irritated by comments in the media where someone is portraying it as gospel that AC locos or units 'dont sell' like its some kind of golden rule. I think the fact is that the market hasn't really been tested in the same way that other areas have. We've got the Bachmann 85 which is simply a superb model. There's the Heljan 86, which was rather disappointing in the flesh but apart from that, on the locos side all the rest are 20+ years old mouldings. Now I dont buy 20+ year old diesels so why would I want to pay for something that is little better (decoration wise) than what was around 20 years so (and an awful lot cheaper). No, I'll keep my money til there's something better thats worth splashing out on. As for the units, well has the AC unit market really been tested? There's the Desiro. Again, a fantastic model, but its pretty restricted in time period and do the modern DC units sell as well as the earlier ones? Bachmann and Hornby have had a series of older DC units that have flown off the shelves, while the only other modern one I can think of was the Hornby Class 466. Now judging by what has been released for that and that it wasn't followed up with a 465 suggests it didn't meet expectations. If the market for DC units is of an earlier period, it would really need an earlier AC unit to test the theory for AC units too. Possibly 304/305/308 or 302/307 or 309 or ideally 303/311!! With such a great Class 150 model I'd wonder whether Bachmann would look at the similar 317/318/455 families (and even 319/320/321/322) to see if any components could be shared or based on. The Desiro rather than the 85 may have been shrunk to 'N' gauge as much for potential to produce some of the DC Desiros (see Model Rail for resprayed 350 as a 450). Shrinking the class 85 would mean you'd only be able to produce 85's and if the 'OO' gauge market is judged as risky, I cant see the 'N' gauge one being any safer! I dont really see the lack of catenery being a problem, if it bothers anyone enough, they'll find a way to get something that looks right to them. If that means scratchbuilding then so be it. Personally, I'd be quite happy having lovely AC models zipping round a layout with or without catenery. In my eye's I'd see the overhead being there until one day it would be whether that was something ready to plant, kit built or scratchbuilt. The thing that might make Bachmann the most likely to try another AC loco again might be shared components with its Class 85. Hornby models tend to be more expensive to start with, AC locos tend to be more expensive than diesel too - combining both those facts doesn't sound appealing! Heljan presumably got stung with the Class 86 (although I am surprised a RES liveried one never appeared, that would presumably have fitted the bodyshell time period too).