Our local Trek shop has a very diverse full inventory of ebikes for sale. They all use Bosch motors which do not have a throttle but do deliver a really seamless ebike experience and are super reliable and have great service, tech support and parts availability. The service part really depends on the culture of each shop so a few visits to see the bike, test ride a few, chat up the staff, you will get that blank filled in with enough time spent. Their real edge right now is that they have bikes for sale that you can pay for and ride out the door whenever you want, unless you are looking for something at the higher end that you will want some custom components or substitutions. Your budget is realistic. They have a nice array of bike in your price range. Their ebike cover page is starts with a photo of the exact model I bought almost a year ago. It has been a joy to ride, not without a few things that needed warranty attention, but very reliable after working out two bugs.